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< p class = "caption" role = "heading" > < span class = "caption-text" > Introduction< / span > < / p >
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< li class = "toctree-l1" > < a class = "reference internal" href = "../../../introduction/basic_usage/" > Basic Usage< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../../introduction/train_agent/" > Training an Agent< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../../introduction/create_custom_env/" > Create a Custom Environment< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../../introduction/record_agent/" > Recording Agents< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../../introduction/speed_up_env/" > Speeding Up Training< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../../introduction/gym_compatibility/" > Compatibility with Gym< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../../introduction/migration_guide/" > Migration Guide - v0.21 to v1.0.0< / a > < / li >
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< p class = "caption" role = "heading" > < span class = "caption-text" > API< / span > < / p >
< ul class = "current" >
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< li class = "toctree-l1" > < a class = "reference internal" href = "../../env/" > Env< / a > < / li >
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< li class = "toctree-l1" > < a class = "reference internal" href = "../../registry/" > Make and register< / a > < / li >
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< li class = "toctree-l1 current has-children" > < a class = "reference internal" href = "../" > Spaces< / a > < input checked = "" class = "toctree-checkbox" id = "toctree-checkbox-1" name = "toctree-checkbox-1" role = "switch" type = "checkbox" / > < label for = "toctree-checkbox-1" > < div class = "visually-hidden" > Toggle navigation of Spaces< / div > < i class = "icon" > < svg > < use href = "#svg-arrow-right" > < / use > < / svg > < / i > < / label > < ul class = "current" >
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< li class = "toctree-l2" > < a class = "reference internal" href = "../fundamental/" > Fundamental Spaces< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "../composite/" > Composite Spaces< / a > < / li >
< li class = "toctree-l2 current current-page" > < a class = "current reference internal" href = "#" > Spaces Utils< / a > < / li >
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< li class = "toctree-l1 has-children" > < a class = "reference internal" href = "../../wrappers/" > Wrappers< / a > < input class = "toctree-checkbox" id = "toctree-checkbox-2" name = "toctree-checkbox-2" role = "switch" type = "checkbox" / > < label for = "toctree-checkbox-2" > < div class = "visually-hidden" > Toggle navigation of Wrappers< / div > < i class = "icon" > < svg > < use href = "#svg-arrow-right" > < / use > < / svg > < / i > < / label > < ul >
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< li class = "toctree-l2" > < a class = "reference internal" href = "../../wrappers/table/" > List of Wrappers< / a > < / li >
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< li class = "toctree-l2" > < a class = "reference internal" href = "../../wrappers/misc_wrappers/" > Misc Wrappers< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "../../wrappers/action_wrappers/" > Action Wrappers< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "../../wrappers/observation_wrappers/" > Observation Wrappers< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "../../wrappers/reward_wrappers/" > Reward Wrappers< / a > < / li >
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< / ul >
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< li class = "toctree-l1 has-children" > < a class = "reference internal" href = "../../vector/" > Vectorize< / a > < input class = "toctree-checkbox" id = "toctree-checkbox-3" name = "toctree-checkbox-3" role = "switch" type = "checkbox" / > < label for = "toctree-checkbox-3" > < div class = "visually-hidden" > Toggle navigation of Vectorize< / div > < i class = "icon" > < svg > < use href = "#svg-arrow-right" > < / use > < / svg > < / i > < / label > < ul >
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< li class = "toctree-l2" > < a class = "reference internal" href = "../../vector/async_vector_env/" > AsyncVectorEnv< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "../../vector/sync_vector_env/" > SyncVectorEnv< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "../../vector/utils/" > Utility functions< / a > < / li >
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< li class = "toctree-l1" > < a class = "reference internal" href = "../../utils/" > Utility functions< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../functional/" > Functional Env< / a > < / li >
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< li class = "toctree-l1 has-children" > < a class = "reference internal" href = "../../../environments/classic_control/" > Classic Control< / a > < input class = "toctree-checkbox" id = "toctree-checkbox-4" name = "toctree-checkbox-4" role = "switch" type = "checkbox" / > < label for = "toctree-checkbox-4" > < div class = "visually-hidden" > Toggle navigation of Classic Control< / div > < i class = "icon" > < svg > < use href = "#svg-arrow-right" > < / use > < / svg > < / i > < / label > < ul >
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< li class = "toctree-l2" > < a class = "reference internal" href = "../../../environments/classic_control/mountain_car_continuous/" > Mountain Car Continuous< / a > < / li >
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< li class = "toctree-l2" > < a class = "reference internal" href = "../../../environments/classic_control/pendulum/" > Pendulum< / a > < / li >
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< section class = "tex2jax_ignore mathjax_ignore" id = "spaces-utils" >
< h1 > Spaces Utils< a class = "headerlink" href = "#spaces-utils" title = "Link to this heading" > ¶< / a > < / h1 >
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< dl class = "py function" >
< dt class = "sig sig-object py" id = "gymnasium.spaces.utils.flatten_space" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../#gymnasium.spaces.Space" title = "gymnasium.spaces.space.Space" > < span class = "pre" > Space< / span > < / a > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Dict" title = "gymnasium.spaces.dict.Dict" > < span class = "pre" > Dict< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Sequence" title = "gymnasium.spaces.sequence.Sequence" > < span class = "pre" > Sequence< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Tuple" title = "gymnasium.spaces.tuple.Tuple" > < span class = "pre" > Tuple< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.graph.Graph" > < span class = "pre" > Graph< / span > < / a > < / span > < / span > < a class = "reference internal" href = "../../../_modules/gymnasium/spaces/utils/#flatten_space" > < span class = "viewcode-link" > < span class = "pre" > [source]< / span > < / span > < / a > < a class = "headerlink" href = "#gymnasium.spaces.utils.flatten_space" title = "Link to this definition" > ¶< / a > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Discrete" title = "gymnasium.spaces.discrete.Discrete" > < span class = "pre" > Discrete< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiDiscrete" title = "gymnasium.spaces.multi_discrete.MultiDiscrete" > < span class = "pre" > MultiDiscrete< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Discrete" title = "gymnasium.spaces.discrete.Discrete" > < span class = "pre" > Discrete< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiDiscrete" title = "gymnasium.spaces.multi_discrete.MultiDiscrete" > < span class = "pre" > MultiDiscrete< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Discrete" title = "gymnasium.spaces.discrete.Discrete" > < span class = "pre" > Discrete< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiDiscrete" title = "gymnasium.spaces.multi_discrete.MultiDiscrete" > < span class = "pre" > MultiDiscrete< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Tuple" title = "gymnasium.spaces.tuple.Tuple" > < span class = "pre" > Tuple< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Tuple" title = "gymnasium.spaces.tuple.Tuple" > < span class = "pre" > Tuple< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Dict" title = "gymnasium.spaces.dict.Dict" > < span class = "pre" > Dict< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Dict" title = "gymnasium.spaces.dict.Dict" > < span class = "pre" > Dict< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.graph.Graph" > < span class = "pre" > Graph< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.graph.Graph" > < span class = "pre" > Graph< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Text" title = "gymnasium.spaces.text.Text" > < span class = "pre" > Text< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Sequence" title = "gymnasium.spaces.sequence.Sequence" > < span class = "pre" > Sequence< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Sequence" title = "gymnasium.spaces.sequence.Sequence" > < span class = "pre" > Sequence< / span > < / a > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten_space< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.OneOf" title = "gymnasium.spaces.oneof.OneOf" > < span class = "pre" > OneOf< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < / span > < / span > < / dt >
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< dd > < p > Flatten a space into a space that is as flat as possible.< / p >
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< p > This function will attempt to flatten < code class = "docutils literal notranslate" > < span class = "pre" > space< / span > < / code > into a single < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.Box" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Box< / span > < / code > < / a > space.
However, this might not be possible when < code class = "docutils literal notranslate" > < span class = "pre" > space< / span > < / code > is an instance of < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.Graph" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Graph< / span > < / code > < / a > ,
< a class = "reference internal" href = "../composite/#gymnasium.spaces.Sequence" title = "gymnasium.spaces.Sequence" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Sequence< / span > < / code > < / a > or a compound space that contains a < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.Graph" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Graph< / span > < / code > < / a >
or < a class = "reference internal" href = "../composite/#gymnasium.spaces.Sequence" title = "gymnasium.spaces.Sequence" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Sequence< / span > < / code > < / a > space.
This is equivalent to < a class = "reference internal" href = "#gymnasium.spaces.utils.flatten" title = "gymnasium.spaces.utils.flatten" > < code class = "xref py py-func docutils literal notranslate" > < span class = "pre" > flatten()< / span > < / code > < / a > , but operates on the space itself. The
result for non-graph spaces is always a < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.Box" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Box< / span > < / code > < / a > with flat boundaries. While
the result for graph spaces is always a < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.Graph" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Graph< / span > < / code > < / a > with
< code class = "xref py py-attr docutils literal notranslate" > < span class = "pre" > Graph.node_space< / span > < / code > being a < code class = "docutils literal notranslate" > < span class = "pre" > Box< / span > < / code >
with flat boundaries and < code class = "xref py py-attr docutils literal notranslate" > < span class = "pre" > Graph.edge_space< / span > < / code > being a < code class = "docutils literal notranslate" > < span class = "pre" > Box< / span > < / code > with flat boundaries or
< code class = "docutils literal notranslate" > < span class = "pre" > None< / span > < / code > . The box has exactly < a class = "reference internal" href = "#gymnasium.spaces.utils.flatdim" title = "gymnasium.spaces.utils.flatdim" > < code class = "xref py py-func docutils literal notranslate" > < span class = "pre" > flatdim()< / span > < / code > < / a > dimensions. Flattening a sample
of the original space has the same effect as taking a sample of the flattened
space. However, sampling from the flattened space is not necessarily reversible.
For example, sampling from a flattened Discrete space is the same as sampling from
a Box, and the results may not be integers or one-hot encodings. This may result in
errors or non-uniform sampling.< / p >
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< dl class = "field-list simple" >
< dt class = "field-odd" > Parameters< span class = "colon" > :< / span > < / dt >
< dd class = "field-odd" > < p > < strong > space< / strong > – < / p >
< / dd >
< dt class = "field-even" > Returns< span class = "colon" > :< / span > < / dt >
< dd class = "field-even" > < p > < strong > A flattened Box< / strong > < / p >
< / dd >
< dt class = "field-odd" > Raises< span class = "colon" > :< / span > < / dt >
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< dd class = "field-odd" > < p > < strong > NotImplementedError< / strong > – < a class = "reference internal" href = "../#module-gymnasium.spaces" title = "gymnasium.spaces" > < code class = "xref py py-mod docutils literal notranslate" > < span class = "pre" > gymnasium.spaces< / span > < / code > < / a > .< / p >
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< / dd >
< / dl >
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< dl >
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< dt > Example - Flatten spaces.Box:< / dt > < dd > < div class = "doctest highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "gp" > > > > < / span > < span class = "kn" > from< / span > < span class = "w" > < / span > < span class = "nn" > gymnasium.spaces< / span > < span class = "w" > < / span > < span class = "kn" > import< / span > < span class = "n" > Box< / span >
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< span class = "gp" > > > > < / span > < span class = "n" > box< / span > < span class = "o" > =< / span > < span class = "n" > Box< / span > < span class = "p" > (< / span > < span class = "mf" > 0.0< / span > < span class = "p" > ,< / span > < span class = "mf" > 1.0< / span > < span class = "p" > ,< / span > < span class = "n" > shape< / span > < span class = "o" > =< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > ,< / span > < span class = "mi" > 4< / span > < span class = "p" > ,< / span > < span class = "mi" > 5< / span > < span class = "p" > ))< / span >
< span class = "gp" > > > > < / span > < span class = "n" > box< / span >
< span class = "go" > Box(0.0, 1.0, (3, 4, 5), float32)< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten_space< / span > < span class = "p" > (< / span > < span class = "n" > box< / span > < span class = "p" > )< / span >
< span class = "go" > Box(0.0, 1.0, (60,), float32)< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten< / span > < span class = "p" > (< / span > < span class = "n" > box< / span > < span class = "p" > ,< / span > < span class = "n" > box< / span > < span class = "o" > .< / span > < span class = "n" > sample< / span > < span class = "p" > ())< / span > < span class = "ow" > in< / span > < span class = "n" > flatten_space< / span > < span class = "p" > (< / span > < span class = "n" > box< / span > < span class = "p" > )< / span >
< span class = "go" > True< / span >
< / pre > < / div >
< / div >
< / dd >
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< dt > Example - Flatten spaces.Discrete:< / dt > < dd > < div class = "doctest highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "gp" > > > > < / span > < span class = "kn" > from< / span > < span class = "w" > < / span > < span class = "nn" > gymnasium.spaces< / span > < span class = "w" > < / span > < span class = "kn" > import< / span > < span class = "n" > Discrete< / span >
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< span class = "gp" > > > > < / span > < span class = "n" > discrete< / span > < span class = "o" > =< / span > < span class = "n" > Discrete< / span > < span class = "p" > (< / span > < span class = "mi" > 5< / span > < span class = "p" > )< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten_space< / span > < span class = "p" > (< / span > < span class = "n" > discrete< / span > < span class = "p" > )< / span >
< span class = "go" > Box(0, 1, (5,), int64)< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten< / span > < span class = "p" > (< / span > < span class = "n" > discrete< / span > < span class = "p" > ,< / span > < span class = "n" > discrete< / span > < span class = "o" > .< / span > < span class = "n" > sample< / span > < span class = "p" > ())< / span > < span class = "ow" > in< / span > < span class = "n" > flatten_space< / span > < span class = "p" > (< / span > < span class = "n" > discrete< / span > < span class = "p" > )< / span >
< span class = "go" > True< / span >
< / pre > < / div >
< / div >
< / dd >
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< dt > Example - Flatten spaces.Dict:< / dt > < dd > < div class = "doctest highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "gp" > > > > < / span > < span class = "kn" > from< / span > < span class = "w" > < / span > < span class = "nn" > gymnasium.spaces< / span > < span class = "w" > < / span > < span class = "kn" > import< / span > < span class = "n" > Dict< / span > < span class = "p" > ,< / span > < span class = "n" > Discrete< / span > < span class = "p" > ,< / span > < span class = "n" > Box< / span >
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< span class = "gp" > > > > < / span > < span class = "n" > space< / span > < span class = "o" > =< / span > < span class = "n" > Dict< / span > < span class = "p" > ({< / span > < span class = "s2" > " position" < / span > < span class = "p" > :< / span > < span class = "n" > Discrete< / span > < span class = "p" > (< / span > < span class = "mi" > 2< / span > < span class = "p" > ),< / span > < span class = "s2" > " velocity" < / span > < span class = "p" > :< / span > < span class = "n" > Box< / span > < span class = "p" > (< / span > < span class = "mi" > 0< / span > < span class = "p" > ,< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "n" > shape< / span > < span class = "o" > =< / span > < span class = "p" > (< / span > < span class = "mi" > 2< / span > < span class = "p" > ,< / span > < span class = "mi" > 2< / span > < span class = "p" > ))})< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten_space< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > )< / span >
< span class = "go" > Box(0.0, 1.0, (6,), float64)< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > ,< / span > < span class = "n" > space< / span > < span class = "o" > .< / span > < span class = "n" > sample< / span > < span class = "p" > ())< / span > < span class = "ow" > in< / span > < span class = "n" > flatten_space< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > )< / span >
< span class = "go" > True< / span >
< / pre > < / div >
< / div >
< / dd >
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< dt > Example - Flatten spaces.Graph:< / dt > < dd > < div class = "doctest highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "gp" > > > > < / span > < span class = "kn" > from< / span > < span class = "w" > < / span > < span class = "nn" > gymnasium.spaces< / span > < span class = "w" > < / span > < span class = "kn" > import< / span > < span class = "n" > Graph< / span > < span class = "p" > ,< / span > < span class = "n" > Discrete< / span > < span class = "p" > ,< / span > < span class = "n" > Box< / span >
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< span class = "gp" > > > > < / span > < span class = "n" > space< / span > < span class = "o" > =< / span > < span class = "n" > Graph< / span > < span class = "p" > (< / span > < span class = "n" > node_space< / span > < span class = "o" > =< / span > < span class = "n" > Box< / span > < span class = "p" > (< / span > < span class = "n" > low< / span > < span class = "o" > =-< / span > < span class = "mi" > 100< / span > < span class = "p" > ,< / span > < span class = "n" > high< / span > < span class = "o" > =< / span > < span class = "mi" > 100< / span > < span class = "p" > ,< / span > < span class = "n" > shape< / span > < span class = "o" > =< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > ,< / span > < span class = "mi" > 4< / span > < span class = "p" > )),< / span > < span class = "n" > edge_space< / span > < span class = "o" > =< / span > < span class = "n" > Discrete< / span > < span class = "p" > (< / span > < span class = "mi" > 5< / span > < span class = "p" > ))< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten_space< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > )< / span >
< span class = "go" > Graph(Box(-100.0, 100.0, (12,), float32), Box(0, 1, (5,), int64))< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > ,< / span > < span class = "n" > space< / span > < span class = "o" > .< / span > < span class = "n" > sample< / span > < span class = "p" > ())< / span > < span class = "ow" > in< / span > < span class = "n" > flatten_space< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > )< / span >
< span class = "go" > True< / span >
< / pre > < / div >
< / div >
< / dd >
< / dl >
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< / dd > < / dl >
< dl class = "py function" >
< dt class = "sig sig-object py" id = "gymnasium.spaces.utils.flatten" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../#gymnasium.spaces.Space" title = "gymnasium.spaces.space.Space" > < span class = "pre" > Space< / span > < / a > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > T< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > T< / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dict< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > str< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > GraphInstance< / span > < / span > < / span > < a class = "reference internal" href = "../../../_modules/gymnasium/spaces/utils/#flatten" > < span class = "viewcode-link" > < span class = "pre" > [source]< / span > < / span > < / a > < a class = "headerlink" href = "#gymnasium.spaces.utils.flatten" title = "Link to this definition" > ¶< / a > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Discrete" title = "gymnasium.spaces.discrete.Discrete" > < span class = "pre" > Discrete< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > int64< / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > int64< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiDiscrete" title = "gymnasium.spaces.multi_discrete.MultiDiscrete" > < span class = "pre" > MultiDiscrete< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > int64< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > int64< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Tuple" title = "gymnasium.spaces.tuple.Tuple" > < span class = "pre" > Tuple< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Dict" title = "gymnasium.spaces.dict.Dict" > < span class = "pre" > Dict< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > dict< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > str< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > dict< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > str< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2022-12-12 13:31:00 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.graph.Graph" > < span class = "pre" > Graph< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > GraphInstance< / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > GraphInstance< / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Text" title = "gymnasium.spaces.text.Text" > < span class = "pre" > Text< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > str< / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > int32< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Sequence" title = "gymnasium.spaces.sequence.Sequence" > < span class = "pre" > Sequence< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.OneOf" title = "gymnasium.spaces.oneof.OneOf" > < span class = "pre" > OneOf< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > int< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
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< dd > < p > Flatten a data point from a space.< / p >
< p > This is useful when e.g. points from spaces must be passed to a neural
network, which only understands flat arrays of floats.< / p >
< dl class = "field-list simple" >
< dt class = "field-odd" > Parameters< span class = "colon" > :< / span > < / dt >
< dd class = "field-odd" > < ul class = "simple" >
< li > < p > < strong > space< / strong > – < code class = "docutils literal notranslate" > < span class = "pre" > x< / span > < / code > is flattened by< / p > < / li >
< li > < p > < strong > x< / strong > – < / p > < / li >
< / ul >
< / dd >
< dt class = "field-even" > Returns< span class = "colon" > :< / span > < / dt >
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< dd class = "field-even" > < p > < strong > The flattened datapoint< / strong > – < / p >
< ul class = "simple" >
< li > < p > For < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.Box" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Box< / span > < / code > < / a > and < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.MultiBinary" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.MultiBinary< / span > < / code > < / a > , this is a flattened array< / p > < / li >
< li > < p > For < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Discrete" title = "gymnasium.spaces.Discrete" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Discrete< / span > < / code > < / a > and < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiDiscrete" title = "gymnasium.spaces.MultiDiscrete" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.MultiDiscrete< / span > < / code > < / a > , this is a flattened one-hot array of the sample< / p > < / li >
< li > < p > For < a class = "reference internal" href = "../composite/#gymnasium.spaces.Tuple" title = "gymnasium.spaces.Tuple" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Tuple< / span > < / code > < / a > and < a class = "reference internal" href = "../composite/#gymnasium.spaces.Dict" title = "gymnasium.spaces.Dict" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Dict< / span > < / code > < / a > , this is a concatenated array the subspaces (does not support graph subspaces)< / p > < / li >
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< li > < dl class = "simple" >
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< dt > For graph spaces, returns < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > GraphInstance< / span > < / code > where:< / dt > < dd > < ul >
< li > < p > < code class = "xref py py-attr docutils literal notranslate" > < span class = "pre" > GraphInstance.nodes< / span > < / code > are n x k arrays< / p > < / li >
< li > < dl class = "simple" >
< dt > < code class = "xref py py-attr docutils literal notranslate" > < span class = "pre" > GraphInstance.edges< / span > < / code > are either:< / dt > < dd > < ul >
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< li > < p > m x k arrays< / p > < / li >
< li > < p > None< / p > < / li >
< / ul >
< / dd >
< / dl >
< / li >
< li > < dl class = "simple" >
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< dt > < code class = "xref py py-attr docutils literal notranslate" > < span class = "pre" > GraphInstance.edge_links< / span > < / code > are either:< / dt > < dd > < ul >
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< li > < p > m x 2 arrays< / p > < / li >
< li > < p > None< / p > < / li >
< / ul >
< / dd >
< / dl >
< / li >
< / ul >
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< / dd >
< / dl >
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< / li >
< / ul >
< / dd >
< dt class = "field-odd" > Raises< span class = "colon" > :< / span > < / dt >
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< dd class = "field-odd" > < p > < strong > NotImplementedError< / strong > – < a class = "reference internal" href = "../#module-gymnasium.spaces" title = "gymnasium.spaces" > < code class = "xref py py-mod docutils literal notranslate" > < span class = "pre" > gymnasium.spaces< / span > < / code > < / a > .< / p >
< / dd >
< / dl >
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< p class = "rubric" > Example< / p >
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< div class = "doctest highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "gp" > > > > < / span > < span class = "kn" > from< / span > < span class = "w" > < / span > < span class = "nn" > gymnasium.spaces< / span > < span class = "w" > < / span > < span class = "kn" > import< / span > < span class = "n" > Box< / span > < span class = "p" > ,< / span > < span class = "n" > Discrete< / span > < span class = "p" > ,< / span > < span class = "n" > Tuple< / span >
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< span class = "gp" > > > > < / span > < span class = "n" > space< / span > < span class = "o" > =< / span > < span class = "n" > Box< / span > < span class = "p" > (< / span > < span class = "mi" > 0< / span > < span class = "p" > ,< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "n" > shape< / span > < span class = "o" > =< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > ,< / span > < span class = "mi" > 5< / span > < span class = "p" > ))< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > ,< / span > < span class = "n" > space< / span > < span class = "o" > .< / span > < span class = "n" > sample< / span > < span class = "p" > ())< / span > < span class = "o" > .< / span > < span class = "n" > shape< / span >
< span class = "go" > (15,)< / span >
< span class = "gp" > > > > < / span > < span class = "n" > space< / span > < span class = "o" > =< / span > < span class = "n" > Discrete< / span > < span class = "p" > (< / span > < span class = "mi" > 4< / span > < span class = "p" > )< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > ,< / span > < span class = "mi" > 2< / span > < span class = "p" > )< / span >
< span class = "go" > array([0, 0, 1, 0])< / span >
< span class = "gp" > > > > < / span > < span class = "n" > space< / span > < span class = "o" > =< / span > < span class = "n" > Tuple< / span > < span class = "p" > ((< / span > < span class = "n" > Box< / span > < span class = "p" > (< / span > < span class = "mi" > 0< / span > < span class = "p" > ,< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "n" > shape< / span > < span class = "o" > =< / span > < span class = "p" > (< / span > < span class = "mi" > 2< / span > < span class = "p" > ,)),< / span > < span class = "n" > Box< / span > < span class = "p" > (< / span > < span class = "mi" > 0< / span > < span class = "p" > ,< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "n" > shape< / span > < span class = "o" > =< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > ,)),< / span > < span class = "n" > Discrete< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > )))< / span >
< span class = "gp" > > > > < / span > < span class = "n" > example< / span > < span class = "o" > =< / span > < span class = "p" > ((< / span > < span class = "mf" > .5< / span > < span class = "p" > ,< / span > < span class = "mf" > .25< / span > < span class = "p" > ),< / span > < span class = "p" > (< / span > < span class = "mf" > 1.< / span > < span class = "p" > ,< / span > < span class = "mf" > 0.< / span > < span class = "p" > ,< / span > < span class = "mf" > .2< / span > < span class = "p" > ),< / span > < span class = "mi" > 1< / span > < span class = "p" > )< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatten< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > ,< / span > < span class = "n" > example< / span > < span class = "p" > )< / span >
< span class = "go" > array([0.5 , 0.25, 1. , 0. , 0.2 , 0. , 1. , 0. ])< / span >
< / pre > < / div >
< / div >
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< / dd > < / dl >
< dl class = "py function" >
< dt class = "sig sig-object py" id = "gymnasium.spaces.utils.flatdim" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../#gymnasium.spaces.Space" title = "gymnasium.spaces.space.Space" > < span class = "pre" > Space< / span > < / a > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < a class = "reference internal" href = "../../../_modules/gymnasium/spaces/utils/#flatdim" > < span class = "viewcode-link" > < span class = "pre" > [source]< / span > < / span > < / a > < a class = "headerlink" href = "#gymnasium.spaces.utils.flatdim" title = "Link to this definition" > ¶< / a > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Discrete" title = "gymnasium.spaces.discrete.Discrete" > < span class = "pre" > Discrete< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < / dt >
< dt class = "sig sig-object py" >
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiDiscrete" title = "gymnasium.spaces.multi_discrete.MultiDiscrete" > < span class = "pre" > MultiDiscrete< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < / dt >
< dt class = "sig sig-object py" >
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Tuple" title = "gymnasium.spaces.tuple.Tuple" > < span class = "pre" > Tuple< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < / dt >
< dt class = "sig sig-object py" >
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Dict" title = "gymnasium.spaces.dict.Dict" > < span class = "pre" > Dict< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < / dt >
< dt class = "sig sig-object py" >
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.graph.Graph" > < span class = "pre" > Graph< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < / dt >
< dt class = "sig sig-object py" >
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Text" title = "gymnasium.spaces.text.Text" > < span class = "pre" > Text< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < / dt >
2024-10-08 10:03:58 +00:00
< dt class = "sig sig-object py" >
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > flatdim< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.OneOf" title = "gymnasium.spaces.oneof.OneOf" > < span class = "pre" > OneOf< / span > < / a > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int< / span > < / span > < / span > < / dt >
2022-12-12 13:31:00 +00:00
< dd > < p > Return the number of dimensions a flattened equivalent of this space would have.< / p >
< dl class = "field-list simple" >
< dt class = "field-odd" > Parameters< span class = "colon" > :< / span > < / dt >
< dd class = "field-odd" > < p > < strong > space< / strong > – < / p >
< / dd >
< dt class = "field-even" > Returns< span class = "colon" > :< / span > < / dt >
< dd class = "field-even" > < p > < strong > The number of dimensions for the flattened spaces< / strong > < / p >
< / dd >
< dt class = "field-odd" > Raises< span class = "colon" > :< / span > < / dt >
< dd class = "field-odd" > < ul class = "simple" >
< li > < p > < strong > NotImplementedError< / strong > – < code class = "xref py py-mod docutils literal notranslate" > < span class = "pre" > gym.spaces< / span > < / code > .< / p > < / li >
< li > < p > < strong > ValueError< / strong > – < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.Box" > < code class = "xref py py-class docutils literal notranslate" > < span class = "pre" > gymnasium.spaces.Box< / span > < / code > < / a > < / p > < / li >
< / ul >
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< / dd >
< / dl >
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< p class = "rubric" > Example< / p >
2025-02-26 11:56:33 +00:00
< div class = "doctest highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "gp" > > > > < / span > < span class = "kn" > from< / span > < span class = "w" > < / span > < span class = "nn" > gymnasium.spaces< / span > < span class = "w" > < / span > < span class = "kn" > import< / span > < span class = "n" > Dict< / span > < span class = "p" > ,< / span > < span class = "n" > Discrete< / span >
2023-03-24 17:29:47 +00:00
< span class = "gp" > > > > < / span > < span class = "n" > space< / span > < span class = "o" > =< / span > < span class = "n" > Dict< / span > < span class = "p" > ({< / span > < span class = "s2" > " position" < / span > < span class = "p" > :< / span > < span class = "n" > Discrete< / span > < span class = "p" > (< / span > < span class = "mi" > 2< / span > < span class = "p" > ),< / span > < span class = "s2" > " velocity" < / span > < span class = "p" > :< / span > < span class = "n" > Discrete< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > )})< / span >
< span class = "gp" > > > > < / span > < span class = "n" > flatdim< / span > < span class = "p" > (< / span > < span class = "n" > space< / span > < span class = "p" > )< / span >
< span class = "go" > 5< / span >
< / pre > < / div >
< / div >
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< / dd > < / dl >
< dl class = "py function" >
< dt class = "sig sig-object py" id = "gymnasium.spaces.utils.unflatten" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../#gymnasium.spaces.Space" title = "gymnasium.spaces.space.Space" > < span class = "pre" > Space< / span > < / a > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > T< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dict< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > str< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > GraphInstance< / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > T< / span > < / span > < / span > < a class = "reference internal" href = "../../../_modules/gymnasium/spaces/utils/#unflatten" > < span class = "viewcode-link" > < span class = "pre" > [source]< / span > < / span > < / a > < a class = "headerlink" href = "#gymnasium.spaces.utils.unflatten" title = "Link to this definition" > ¶< / a > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Box" title = "gymnasium.spaces.box.Box" > < span class = "pre" > Box< / span > < / a > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiBinary" title = "gymnasium.spaces.multi_binary.MultiBinary" > < span class = "pre" > MultiBinary< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Discrete" title = "gymnasium.spaces.discrete.Discrete" > < span class = "pre" > Discrete< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > int64< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > int64< / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.MultiDiscrete" title = "gymnasium.spaces.multi_discrete.MultiDiscrete" > < span class = "pre" > MultiDiscrete< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > integer< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > integer< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
2022-09-13 19:29:14 +00:00
< dt class = "sig sig-object py" >
2025-06-27 08:24:37 +00:00
< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Tuple" title = "gymnasium.spaces.tuple.Tuple" > < span class = "pre" > Tuple< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Dict" title = "gymnasium.spaces.dict.Dict" > < span class = "pre" > Dict< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dict< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > str< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > dict< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > str< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Graph" title = "gymnasium.spaces.graph.Graph" > < span class = "pre" > Graph< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > GraphInstance< / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > GraphInstance< / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../fundamental/#gymnasium.spaces.Text" title = "gymnasium.spaces.text.Text" > < span class = "pre" > Text< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > int32< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > str< / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.Sequence" title = "gymnasium.spaces.sequence.Sequence" > < span class = "pre" > Sequence< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > |< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < / span > < / span > < / dt >
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< dt class = "sig sig-object py" >
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< span class = "sig-prename descclassname" > < span class = "pre" > gymnasium.spaces.utils.< / span > < / span > < span class = "sig-name descname" > < span class = "pre" > unflatten< / span > < / span > < span class = "sig-paren" > (< / span > < em class = "sig-param" > < span class = "n" > < span class = "pre" > space< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < a class = "reference internal" href = "../composite/#gymnasium.spaces.OneOf" title = "gymnasium.spaces.oneof.OneOf" > < span class = "pre" > OneOf< / span > < / a > < / span > < / em > , < em class = "sig-param" > < span class = "n" > < span class = "pre" > x< / span > < / span > < span class = "p" > < span class = "pre" > :< / span > < / span > < span class = "w" > < / span > < span class = "n" > < span class = "pre" > ndarray< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "p" > < span class = "pre" > ...< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > dtype< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / em > < span class = "sig-paren" > )< / span > < span class = "sig-return" > < span class = "sig-return-icon" > → < / span > < span class = "sig-return-typehint" > < span class = "pre" > tuple< / span > < span class = "p" > < span class = "pre" > [< / span > < / span > < span class = "pre" > int< / span > < span class = "p" > < span class = "pre" > ,< / span > < / span > < span class = "w" > < / span > < span class = "pre" > Any< / span > < span class = "p" > < span class = "pre" > ]< / span > < / span > < / span > < / span > < / dt >
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< dd > < p > Unflatten a data point from a space.< / p >
< p > This reverses the transformation applied by < a class = "reference internal" href = "#gymnasium.spaces.utils.flatten" title = "gymnasium.spaces.utils.flatten" > < code class = "xref py py-func docutils literal notranslate" > < span class = "pre" > flatten()< / span > < / code > < / a > . You must ensure
that the < code class = "docutils literal notranslate" > < span class = "pre" > space< / span > < / code > argument is the same as for the < a class = "reference internal" href = "#gymnasium.spaces.utils.flatten" title = "gymnasium.spaces.utils.flatten" > < code class = "xref py py-func docutils literal notranslate" > < span class = "pre" > flatten()< / span > < / code > < / a > call.< / p >
< dl class = "field-list simple" >
< dt class = "field-odd" > Parameters< span class = "colon" > :< / span > < / dt >
< dd class = "field-odd" > < ul class = "simple" >
< li > < p > < strong > space< / strong > – < code class = "docutils literal notranslate" > < span class = "pre" > x< / span > < / code > < / p > < / li >
< li > < p > < strong > x< / strong > – < / p > < / li >
< / ul >
< / dd >
< dt class = "field-even" > Returns< span class = "colon" > :< / span > < / dt >
< dd class = "field-even" > < p > < strong > A point with a structure that matches the space.< / strong > < / p >
< / dd >
< dt class = "field-odd" > Raises< span class = "colon" > :< / span > < / dt >
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< dd class = "field-odd" > < p > < strong > NotImplementedError< / strong > – < a class = "reference internal" href = "../#module-gymnasium.spaces" title = "gymnasium.spaces" > < code class = "xref py py-mod docutils literal notranslate" > < span class = "pre" > gymnasium.spaces< / span > < / code > < / a > .< / p >
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< / dd >
< / dl >
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< li > < a class = "reference internal" href = "#" > Spaces Utils< / a > < ul >
< li > < a class = "reference internal" href = "#gymnasium.spaces.utils.flatten_space" > < code class = "docutils literal notranslate" > < span class = "pre" > flatten_space()< / span > < / code > < / a > < / li >
< li > < a class = "reference internal" href = "#gymnasium.spaces.utils.flatten" > < code class = "docutils literal notranslate" > < span class = "pre" > flatten()< / span > < / code > < / a > < / li >
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< li > < a class = "reference internal" href = "#gymnasium.spaces.utils.flatdim" > < code class = "docutils literal notranslate" > < span class = "pre" > flatdim()< / span > < / code > < / a > < / li >
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< li > < a class = "reference internal" href = "#gymnasium.spaces.utils.unflatten" > < code class = "docutils literal notranslate" > < span class = "pre" > unflatten()< / span > < / code > < / a > < / li >
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< / aside >
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< / div >
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< script >
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const toggleMenu = () => {
const menuBtn = document.querySelector(".farama-header-menu__btn");
const menuContainer = document.querySelector(".farama-header-menu-container");
if (document.querySelector(".farama-header-menu").classList.contains("active")) {
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menuBtn.setAttribute("aria-expanded", "false");
menuContainer.setAttribute("aria-hidden", "true");
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} else {
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menuBtn.setAttribute("aria-expanded", "true");
menuContainer.setAttribute("aria-hidden", "false");
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}
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document.querySelector(".farama-header-menu").classList.toggle("active");
}
document.querySelector(".farama-header-menu__btn").addEventListener("click", toggleMenu);
document.getElementById("farama-close-menu").addEventListener("click", toggleMenu);
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< script async src = "https://www.googletagmanager.com/gtag/js?id=G-6H9C8TWXZ8" > < / script >
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const enableGtag = () => {
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-6H9C8TWXZ8');
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boxElem.classList.add("cookie-alert");
const containerElem = document.createElement("div");
containerElem.classList.add("cookie-alert__container");
const textElem = document.createElement("p");
textElem.innerHTML = `This page uses < a href = "https://analytics.google.com/" >
Google Analytics< / a > to collect statistics.`;
containerElem.appendChild(textElem);
const declineBtn = Object.assign(document.createElement("button"),
{
innerText: "Deny",
className: "farama-btn cookie-alert__button",
id: "cookie-alert__decline",
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}
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);
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localStorage.setItem("acceptedCookieAlert", false);
boxElem.remove();
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const acceptBtn = Object.assign(document.createElement("button"),
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innerText: "Allow",
className: "farama-btn cookie-alert__button",
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boxElem.remove();
enableGtag();
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containerElem.appendChild(declineBtn);
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< script src = "../../../_static/documentation_options.js?v=151cd43d" > < / script >
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< script src = "../../../_static/doctools.js?v=9a2dae69" > < / script >
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< script >
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const createProjectsList = (projects, displayImages) => {
const ulElem = Object.assign(document.createElement('ul'),
{
className:'farama-header-menu-list',
}
)
for (let project of projects) {
const liElem = document.createElement("li");
const aElem = Object.assign(document.createElement("a"),
{
href: project.link
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);
liElem.appendChild(aElem);
if (displayImages) {
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{
src: project.image ? imagesBasepath + project.image : imagesBasepath + "/farama_black.svg",
alt: `${project.name} logo`,
className: "farama-black-logo-invert"
}
);
aElem.appendChild(imgElem);
}
aElem.appendChild(document.createTextNode(project.name));
ulElem.appendChild(liElem);
}
return ulElem;
}
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// Create menu with Farama projects by using the API at farama.org/api/projects.json
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const createCORSRequest = (method, url) => {
let xhr = new XMLHttpRequest();
xhr.responseType = 'json';
if ("withCredentials" in xhr) {
xhr.open(method, url, true);
} else if (typeof XDomainRequest != "undefined") {
// IE8 & IE9
xhr = new XDomainRequest();
xhr.open(method, url);
} else {
// CORS not supported.
xhr = null;
}
return xhr;
};
const url = 'https://farama.org/api/projects.json';
const imagesBasepath = "https://farama.org/assets/images"
const method = 'GET';
let xhr = createCORSRequest(method, url);
xhr.onload = () => {
const jsonResponse = xhr.response;
const sections = {
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"Core Projects": [],
"Mature Projects": {
"Documentation": [],
"Repositories": [],
},
"Incubating Projects": {
"Documentation": [],
"Repositories": [],
},
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"Foundation": [
{
name: "About",
link: "https://farama.org/about"
},
{
name: "Standards",
link: "https://farama.org/project_standards",
},
{
name: "Donate",
link: "https://farama.org/donations"
}
]
}
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// Categorize projects
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Object.keys(jsonResponse).forEach(key => {
projectJson = jsonResponse[key];
if (projectJson.website !== null) {
projectJson.link = projectJson.website;
} else {
projectJson.link = projectJson.github;
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}
if (projectJson.type === "core") {
sections["Core Projects"].push(projectJson)
} else if (projectJson.type == "mature") {
if (projectJson.website !== null) {
sections["Mature Projects"]["Documentation"].push(projectJson)
} else {
sections["Mature Projects"]["Repositories"].push(projectJson)
}
} else {
if (projectJson.website !== null) {
sections["Incubating Projects"]["Documentation"].push(projectJson)
} else {
sections["Incubating Projects"]["Repositories"].push(projectJson)
}
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}
})
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Object.keys(sections).forEach((key, i) => {
const sectionElem = Object.assign(
document.createElement('div'), {
className:'farama-header-menu__section',
}
)
sectionElem.appendChild(Object.assign(document.createElement('span'),
{
className:'farama-header-menu__section-title' ,
innerText: key
}
))
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// is not a list
if (sections[key].constructor !== Array) {
const subSections = sections[key];
const subSectionContainerElem = Object.assign(
document.createElement('div'), {
className:'farama-header-menu__subsections-container',
style: 'display: flex'
}
)
Object.keys(subSections).forEach((subKey, i) => {
const subSectionElem = Object.assign(
document.createElement('div'), {
className:'farama-header-menu__subsection',
}
)
subSectionElem.appendChild(Object.assign(document.createElement('span'),
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{
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className:'farama-header-menu__subsection-title' ,
innerText: subKey
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}
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))
const ulElem = createProjectsList(subSections[subKey], key !== 'Foundation');
subSectionElem.appendChild(ulElem);
subSectionContainerElem.appendChild(subSectionElem);
})
sectionElem.appendChild(subSectionContainerElem);
} else {
const projects = sections[key];
const ulElem = createProjectsList(projects, true);
sectionElem.appendChild(ulElem);
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}
menuContainer.appendChild(sectionElem)
});
}
xhr.onerror = function() {
console.error("Unable to load projects");
};
xhr.send();
< / script >
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< script >
const versioningConfig = {
githubUser: 'Farama-Foundation',
githubRepo: 'Gymnasium',
};
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fetch('/main/_static/versioning/versioning_menu.html').then(response => {
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if (response.status === 200) {
response.text().then(text => {
const container = document.createElement("div");
container.innerHTML = text;
document.querySelector("body").appendChild(container);
// innerHtml doenst evaluate scripts, we need to add them dynamically
Array.from(container.querySelectorAll("script")).forEach(oldScript => {
const newScript = document.createElement("script");
Array.from(oldScript.attributes).forEach(attr => newScript.setAttribute(attr.name, attr.value));
newScript.appendChild(document.createTextNode(oldScript.innerHTML));
oldScript.parentNode.replaceChild(newScript, oldScript);
});
});
} else {
console.warn("Unable to load versioning menu", response);
}
});
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< / script >
< / body >
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< / html >
