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<h1>Source code for gymnasium.spaces.dict</h1><div class="highlight"><pre>
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<span></span><span class="sd">"""Implementation of a space that represents the cartesian product of other spaces as a dictionary."""</span>
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<span class="kn">from</span><span class="w"> </span><span class="nn">__future__</span><span class="w"> </span><span class="kn">import</span> <span class="n">annotations</span>
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<span class="kn">import</span><span class="w"> </span><span class="nn">collections.abc</span>
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<span class="kn">import</span><span class="w"> </span><span class="nn">typing</span>
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<span class="kn">from</span><span class="w"> </span><span class="nn">collections</span><span class="w"> </span><span class="kn">import</span> <span class="n">OrderedDict</span>
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<span class="kn">from</span><span class="w"> </span><span class="nn">collections.abc</span><span class="w"> </span><span class="kn">import</span> <span class="n">KeysView</span><span class="p">,</span> <span class="n">Sequence</span>
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<span class="kn">from</span><span class="w"> </span><span class="nn">typing</span><span class="w"> </span><span class="kn">import</span> <span class="n">Any</span>
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<span class="kn">import</span><span class="w"> </span><span class="nn">numpy</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="nn">np</span>
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<span class="kn">from</span><span class="w"> </span><span class="nn">gymnasium.spaces.space</span><span class="w"> </span><span class="kn">import</span> <span class="n">Space</span>
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<div class="viewcode-block" id="Dict">
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<a class="viewcode-back" href="../../../../api/spaces/composite/#gymnasium.spaces.Dict">[docs]</a>
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<span class="k">class</span><span class="w"> </span><span class="nc">Dict</span><span class="p">(</span><span class="n">Space</span><span class="p">[</span><span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]],</span> <span class="n">typing</span><span class="o">.</span><span class="n">Mapping</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Space</span><span class="p">[</span><span class="n">Any</span><span class="p">]]):</span>
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<span class="w"> </span><span class="sd">"""A dictionary of :class:`Space` instances.</span>
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<span class="sd"> Elements of this space are (ordered) dictionaries of elements from the constituent spaces.</span>
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<span class="sd"> Example:</span>
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<span class="sd"> >>> from gymnasium.spaces import Dict, Box, Discrete</span>
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<span class="sd"> >>> observation_space = Dict({"position": Box(-1, 1, shape=(2,)), "color": Discrete(3)}, seed=42)</span>
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<span class="sd"> >>> observation_space.sample()</span>
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<span class="sd"> {'color': np.int64(0), 'position': array([-0.3991573 , 0.21649833], dtype=float32)}</span>
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<span class="sd"> With a nested dict:</span>
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<span class="sd"> >>> from gymnasium.spaces import Box, Dict, Discrete, MultiBinary, MultiDiscrete</span>
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<span class="sd"> >>> Dict( # doctest: +SKIP</span>
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<span class="sd"> ... {</span>
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<span class="sd"> ... "ext_controller": MultiDiscrete([5, 2, 2]),</span>
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<span class="sd"> ... "inner_state": Dict(</span>
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<span class="sd"> ... {</span>
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<span class="sd"> ... "charge": Discrete(100),</span>
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<span class="sd"> ... "system_checks": MultiBinary(10),</span>
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<span class="sd"> ... "job_status": Dict(</span>
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<span class="sd"> ... {</span>
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<span class="sd"> ... "task": Discrete(5),</span>
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<span class="sd"> ... "progress": Box(low=0, high=100, shape=()),</span>
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<span class="sd"> ... }</span>
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<span class="sd"> ... ),</span>
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<span class="sd"> ... }</span>
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<span class="sd"> ... ),</span>
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<span class="sd"> ... }</span>
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<span class="sd"> ... )</span>
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<span class="sd"> It can be convenient to use :class:`Dict` spaces if you want to make complex observations or actions more human-readable.</span>
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<span class="sd"> Usually, it will not be possible to use elements of this space directly in learning code. However, you can easily</span>
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<span class="sd"> convert :class:`Dict` observations to flat arrays by using a :class:`gymnasium.wrappers.FlattenObservation` wrapper.</span>
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<span class="sd"> Similar wrappers can be implemented to deal with :class:`Dict` actions.</span>
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<span class="sd"> """</span>
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<span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span>
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<span class="bp">self</span><span class="p">,</span>
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<span class="n">spaces</span><span class="p">:</span> <span class="kc">None</span> <span class="o">|</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Space</span><span class="p">]</span> <span class="o">|</span> <span class="n">Sequence</span><span class="p">[</span><span class="nb">tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Space</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
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<span class="n">seed</span><span class="p">:</span> <span class="nb">dict</span> <span class="o">|</span> <span class="nb">int</span> <span class="o">|</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">Generator</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
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<span class="o">**</span><span class="n">spaces_kwargs</span><span class="p">:</span> <span class="n">Space</span><span class="p">,</span>
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<span class="p">):</span>
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<span class="w"> </span><span class="sd">"""Constructor of :class:`Dict` space.</span>
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<span class="sd"> This space can be instantiated in one of two ways: Either you pass a dictionary</span>
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<span class="sd"> of spaces to :meth:`__init__` via the ``spaces`` argument, or you pass the spaces as separate</span>
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<span class="sd"> keyword arguments (where you will need to avoid the keys ``spaces`` and ``seed``)</span>
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<span class="sd"> Args:</span>
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<span class="sd"> spaces: A dictionary of spaces. This specifies the structure of the :class:`Dict` space</span>
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<span class="sd"> seed: Optionally, you can use this argument to seed the RNGs of the spaces that make up the :class:`Dict` space.</span>
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<span class="sd"> **spaces_kwargs: If ``spaces`` is ``None``, you need to pass the constituent spaces as keyword arguments, as described above.</span>
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<span class="sd"> """</span>
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<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">spaces</span><span class="p">,</span> <span class="n">OrderedDict</span><span class="p">):</span>
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<span class="n">spaces</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
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<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">spaces</span><span class="p">,</span> <span class="n">collections</span><span class="o">.</span><span class="n">abc</span><span class="o">.</span><span class="n">Mapping</span><span class="p">):</span>
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<span class="c1"># for legacy reasons, we need to preserve the sorted dictionary items.</span>
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<span class="c1"># as this could matter for projects flatten the dictionary.</span>
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<span class="k">try</span><span class="p">:</span>
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<span class="n">spaces</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="nb">sorted</span><span class="p">(</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">()))</span>
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<span class="k">except</span> <span class="ne">TypeError</span><span class="p">:</span>
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<span class="c1"># Incomparable types (e.g. `int` vs. `str`, or user-defined types) found.</span>
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<span class="c1"># The keys remain in the insertion order.</span>
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<span class="n">spaces</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
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<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">spaces</span><span class="p">,</span> <span class="n">Sequence</span><span class="p">):</span>
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<span class="n">spaces</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">spaces</span><span class="p">)</span>
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<span class="k">elif</span> <span class="n">spaces</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
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<span class="n">spaces</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">()</span>
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<span class="k">else</span><span class="p">:</span>
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<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span>
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<span class="sa">f</span><span class="s2">"Unexpected Dict space input, expecting dict, OrderedDict or Sequence, actual type: </span><span class="si">{</span><span class="nb">type</span><span class="p">(</span><span class="n">spaces</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span>
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<span class="p">)</span>
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<span class="c1"># Add kwargs to spaces to allow both dictionary and keywords to be used</span>
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|
<span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">space</span> <span class="ow">in</span> <span class="n">spaces_kwargs</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
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<span class="k">if</span> <span class="n">key</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">spaces</span><span class="p">:</span>
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<span class="n">spaces</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">space</span>
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<span class="k">else</span><span class="p">:</span>
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<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
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|
<span class="sa">f</span><span class="s2">"Dict space keyword '</span><span class="si">{</span><span class="n">key</span><span class="si">}</span><span class="s2">' already exists in the spaces dictionary."</span>
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<span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Space</span><span class="p">[</span><span class="n">Any</span><span class="p">]]</span> <span class="o">=</span> <span class="n">spaces</span>
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<span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">space</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
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<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span>
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<span class="n">space</span><span class="p">,</span> <span class="n">Space</span>
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|
<span class="p">),</span> <span class="sa">f</span><span class="s2">"Dict space element is not an instance of Space: key='</span><span class="si">{</span><span class="n">key</span><span class="si">}</span><span class="s2">', space=</span><span class="si">{</span><span class="n">space</span><span class="si">}</span><span class="s2">"</span>
|
|
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<span class="c1"># None for shape and dtype, since it'll require special handling</span>
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|
<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="n">seed</span><span class="p">)</span> <span class="c1"># type: ignore</span>
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<span class="nd">@property</span>
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|
<span class="k">def</span><span class="w"> </span><span class="nf">is_np_flattenable</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
|
<span class="w"> </span><span class="sd">"""Checks whether this space can be flattened to a :class:`spaces.Box`."""</span>
|
|
<span class="k">return</span> <span class="nb">all</span><span class="p">(</span><span class="n">space</span><span class="o">.</span><span class="n">is_np_flattenable</span> <span class="k">for</span> <span class="n">space</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">values</span><span class="p">())</span>
|
|
|
|
<div class="viewcode-block" id="Dict.seed">
|
|
<a class="viewcode-back" href="../../../../api/spaces/composite/#gymnasium.spaces.Dict.seed">[docs]</a>
|
|
<span class="k">def</span><span class="w"> </span><span class="nf">seed</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">seed</span><span class="p">:</span> <span class="nb">int</span> <span class="o">|</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">)</span> <span class="o">-></span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">int</span><span class="p">]:</span>
|
|
<span class="w"> </span><span class="sd">"""Seed the PRNG of this space and all subspaces.</span>
|
|
|
|
<span class="sd"> Depending on the type of seed, the subspaces will be seeded differently</span>
|
|
|
|
<span class="sd"> * ``None`` - All the subspaces will use a random initial seed</span>
|
|
<span class="sd"> * ``Int`` - The integer is used to seed the :class:`Dict` space that is used to generate seed values for each of the subspaces. Warning, this does not guarantee unique seeds for all subspaces, though is very unlikely.</span>
|
|
<span class="sd"> * ``Dict`` - A dictionary of seeds for each subspace, requires a seed key for every subspace. This supports seeding of multiple composite subspaces (``Dict["space": Dict[...], ...]`` with ``{"space": {...}, ...}``).</span>
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<span class="sd"> Args:</span>
|
|
<span class="sd"> seed: An optional int or dictionary of subspace keys to int to seed each PRNG. See above for more details.</span>
|
|
|
|
<span class="sd"> Returns:</span>
|
|
<span class="sd"> A dictionary for the seed values of the subspaces</span>
|
|
<span class="sd"> """</span>
|
|
<span class="k">if</span> <span class="n">seed</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
|
|
<span class="k">return</span> <span class="p">{</span><span class="n">key</span><span class="p">:</span> <span class="n">subspace</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="kc">None</span><span class="p">)</span> <span class="k">for</span> <span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">subspace</span><span class="p">)</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span>
|
|
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">seed</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span>
|
|
<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="n">seed</span><span class="p">)</span>
|
|
<span class="c1"># Using `np.int32` will mean that the same key occurring is extremely low, even for large subspaces</span>
|
|
<span class="n">subseeds</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">np_random</span><span class="o">.</span><span class="n">integers</span><span class="p">(</span>
|
|
<span class="n">np</span><span class="o">.</span><span class="n">iinfo</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">int32</span><span class="p">)</span><span class="o">.</span><span class="n">max</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="p">)</span>
|
|
<span class="p">)</span>
|
|
<span class="k">return</span> <span class="p">{</span>
|
|
<span class="n">key</span><span class="p">:</span> <span class="n">subspace</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="n">subseed</span><span class="p">))</span>
|
|
<span class="k">for</span> <span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">subspace</span><span class="p">),</span> <span class="n">subseed</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">(),</span> <span class="n">subseeds</span><span class="p">)</span>
|
|
<span class="p">}</span>
|
|
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">seed</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span>
|
|
<span class="k">if</span> <span class="n">seed</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">keys</span><span class="p">():</span>
|
|
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
|
|
<span class="sa">f</span><span class="s2">"The seed keys: </span><span class="si">{</span><span class="n">seed</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span><span class="si">}</span><span class="s2"> are not identical to space keys: </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span><span class="si">}</span><span class="s2">"</span>
|
|
<span class="p">)</span>
|
|
|
|
<span class="k">return</span> <span class="p">{</span><span class="n">key</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="p">[</span><span class="n">key</span><span class="p">]</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="n">seed</span><span class="p">[</span><span class="n">key</span><span class="p">])</span> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">seed</span><span class="o">.</span><span class="n">keys</span><span class="p">()}</span>
|
|
<span class="k">else</span><span class="p">:</span>
|
|
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span>
|
|
<span class="sa">f</span><span class="s2">"Expected seed type: dict, int or None, actual type: </span><span class="si">{</span><span class="nb">type</span><span class="p">(</span><span class="n">seed</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span>
|
|
<span class="p">)</span></div>
|
|
|
|
|
|
<div class="viewcode-block" id="Dict.sample">
|
|
<a class="viewcode-back" href="../../../../api/spaces/composite/#gymnasium.spaces.Dict.sample">[docs]</a>
|
|
<span class="k">def</span><span class="w"> </span><span class="nf">sample</span><span class="p">(</span>
|
|
<span class="bp">self</span><span class="p">,</span>
|
|
<span class="n">mask</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
|
|
<span class="n">probability</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
|
|
<span class="p">)</span> <span class="o">-></span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]:</span>
|
|
<span class="w"> </span><span class="sd">"""Generates a single random sample from this space.</span>
|
|
|
|
<span class="sd"> The sample is an ordered dictionary of independent samples from the constituent spaces.</span>
|
|
|
|
<span class="sd"> Args:</span>
|
|
<span class="sd"> mask: An optional mask for each of the subspaces, expects the same keys as the space</span>
|
|
<span class="sd"> probability: An optional probability mask for each of the subspaces, expects the same keys as the space</span>
|
|
|
|
<span class="sd"> Returns:</span>
|
|
<span class="sd"> A dictionary with the same key and sampled values from :attr:`self.spaces`</span>
|
|
<span class="sd"> """</span>
|
|
<span class="k">if</span> <span class="n">mask</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">probability</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
|
|
<span class="sa">f</span><span class="s2">"Only one of `mask` or `probability` can be provided, actual values: mask=</span><span class="si">{</span><span class="n">mask</span><span class="si">}</span><span class="s2">, probability=</span><span class="si">{</span><span class="n">probability</span><span class="si">}</span><span class="s2">"</span>
|
|
<span class="p">)</span>
|
|
<span class="k">elif</span> <span class="n">mask</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span>
|
|
<span class="n">mask</span><span class="p">,</span> <span class="nb">dict</span>
|
|
<span class="p">),</span> <span class="sa">f</span><span class="s2">"Expected sample mask to be a dict, actual type: </span><span class="si">{</span><span class="nb">type</span><span class="p">(</span><span class="n">mask</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span>
|
|
<span class="k">assert</span> <span class="p">(</span>
|
|
<span class="n">mask</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
|
|
<span class="p">),</span> <span class="sa">f</span><span class="s2">"Expected sample mask keys to be same as space keys, mask keys: </span><span class="si">{</span><span class="n">mask</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span><span class="si">}</span><span class="s2">, space keys: </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span><span class="si">}</span><span class="s2">"</span>
|
|
|
|
<span class="k">return</span> <span class="p">{</span><span class="n">k</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="n">mask</span><span class="o">=</span><span class="n">mask</span><span class="p">[</span><span class="n">k</span><span class="p">])</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">space</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span>
|
|
<span class="k">elif</span> <span class="n">probability</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span>
|
|
<span class="n">probability</span><span class="p">,</span> <span class="nb">dict</span>
|
|
<span class="p">),</span> <span class="sa">f</span><span class="s2">"Expected sample probability mask to be a dict, actual type: </span><span class="si">{</span><span class="nb">type</span><span class="p">(</span><span class="n">probability</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span>
|
|
<span class="k">assert</span> <span class="p">(</span>
|
|
<span class="n">probability</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
|
|
<span class="p">),</span> <span class="sa">f</span><span class="s2">"Expected sample probability mask keys to be same as space keys, mask keys: </span><span class="si">{</span><span class="n">probability</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span><span class="si">}</span><span class="s2">, space keys: </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span><span class="si">}</span><span class="s2">"</span>
|
|
|
|
<span class="k">return</span> <span class="p">{</span>
|
|
<span class="n">k</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="n">probability</span><span class="o">=</span><span class="n">probability</span><span class="p">[</span><span class="n">k</span><span class="p">])</span>
|
|
<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">space</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
|
|
<span class="p">}</span>
|
|
<span class="k">else</span><span class="p">:</span>
|
|
<span class="k">return</span> <span class="p">{</span><span class="n">k</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="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">space</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span></div>
|
|
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="nf">contains</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
<span class="w"> </span><span class="sd">"""Return boolean specifying if x is a valid member of this space."""</span>
|
|
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="nb">dict</span><span class="p">)</span> <span class="ow">and</span> <span class="n">x</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">keys</span><span class="p">():</span>
|
|
<span class="k">return</span> <span class="nb">all</span><span class="p">(</span><span class="n">x</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
|
|
<span class="k">return</span> <span class="kc">False</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">Space</span><span class="p">[</span><span class="n">Any</span><span class="p">]:</span>
|
|
<span class="w"> </span><span class="sd">"""Get the space that is associated to `key`."""</span>
|
|
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="nf">keys</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="n">KeysView</span><span class="p">:</span>
|
|
<span class="w"> </span><span class="sd">"""Returns the keys of the Dict."""</span>
|
|
<span class="k">return</span> <span class="n">KeysView</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="p">)</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">value</span><span class="p">:</span> <span class="n">Space</span><span class="p">[</span><span class="n">Any</span><span class="p">]):</span>
|
|
<span class="w"> </span><span class="sd">"""Set the space that is associated to `key`."""</span>
|
|
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span>
|
|
<span class="n">value</span><span class="p">,</span> <span class="n">Space</span>
|
|
<span class="p">),</span> <span class="sa">f</span><span class="s2">"Trying to set </span><span class="si">{</span><span class="n">key</span><span class="si">}</span><span class="s2"> to Dict space with value that is not a gymnasium space, actual type: </span><span class="si">{</span><span class="nb">type</span><span class="p">(</span><span class="n">value</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span>
|
|
<span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">value</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
|
<span class="w"> </span><span class="sd">"""Iterator through the keys of the subspaces."""</span>
|
|
<span class="k">yield from</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
|
<span class="w"> </span><span class="sd">"""Gives the number of simpler spaces that make up the `Dict` space."""</span>
|
|
<span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="p">)</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span>
|
|
<span class="w"> </span><span class="sd">"""Gives a string representation of this space."""</span>
|
|
<span class="k">return</span> <span class="p">(</span>
|
|
<span class="s2">"Dict("</span> <span class="o">+</span> <span class="s2">", "</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">k</span><span class="si">!r}</span><span class="s2">: </span><span class="si">{</span><span class="n">s</span><span class="si">}</span><span class="s2">"</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">s</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">()])</span> <span class="o">+</span> <span class="s2">")"</span>
|
|
<span class="p">)</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="fm">__eq__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
<span class="w"> </span><span class="sd">"""Check whether `other` is equivalent to this instance."""</span>
|
|
<span class="k">return</span> <span class="p">(</span>
|
|
<span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">Dict</span><span class="p">)</span>
|
|
<span class="c1"># Comparison of `OrderedDict`s is order-sensitive</span>
|
|
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">spaces</span> <span class="c1"># OrderedDict.__eq__</span>
|
|
<span class="p">)</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="nf">to_jsonable</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sample_n</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]])</span> <span class="o">-></span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">list</span><span class="p">[</span><span class="n">Any</span><span class="p">]]:</span>
|
|
<span class="w"> </span><span class="sd">"""Convert a batch of samples from this space to a JSONable data type."""</span>
|
|
<span class="c1"># serialize as dict-repr of vectors</span>
|
|
<span class="k">return</span> <span class="p">{</span>
|
|
<span class="n">key</span><span class="p">:</span> <span class="n">space</span><span class="o">.</span><span class="n">to_jsonable</span><span class="p">([</span><span class="n">sample</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="k">for</span> <span class="n">sample</span> <span class="ow">in</span> <span class="n">sample_n</span><span class="p">])</span>
|
|
<span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">space</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="k">def</span><span class="w"> </span><span class="nf">from_jsonable</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sample_n</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">list</span><span class="p">[</span><span class="n">Any</span><span class="p">]])</span> <span class="o">-></span> <span class="nb">list</span><span class="p">[</span><span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]]:</span>
|
|
<span class="w"> </span><span class="sd">"""Convert a JSONable data type to a batch of samples from this space."""</span>
|
|
<span class="n">dict_of_list</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">list</span><span class="p">[</span><span class="n">Any</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span>
|
|
<span class="n">key</span><span class="p">:</span> <span class="n">space</span><span class="o">.</span><span class="n">from_jsonable</span><span class="p">(</span><span class="n">sample_n</span><span class="p">[</span><span class="n">key</span><span class="p">])</span>
|
|
<span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">space</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">spaces</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="n">n_elements</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="nb">next</span><span class="p">(</span><span class="nb">iter</span><span class="p">(</span><span class="n">dict_of_list</span><span class="o">.</span><span class="n">values</span><span class="p">())))</span>
|
|
<span class="n">result</span> <span class="o">=</span> <span class="p">[</span>
|
|
<span class="p">{</span><span class="n">key</span><span class="p">:</span> <span class="n">value</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">dict_of_list</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span>
|
|
<span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n_elements</span><span class="p">)</span>
|
|
<span class="p">]</span>
|
|
<span class="k">return</span> <span class="n">result</span></div>
|
|
|
|
</pre></div>
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// Categorize projects
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className:'farama-header-menu__section',
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)
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sectionElem.appendChild(Object.assign(document.createElement('span'),
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{
|
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className:'farama-header-menu__section-title' ,
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innerText: key
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))
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const subSectionElem = Object.assign(
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document.createElement('div'), {
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className:'farama-header-menu__subsection',
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}
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)
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{
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className:'farama-header-menu__subsection-title' ,
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innerText: subKey
|
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}
|
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))
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const ulElem = createProjectsList(subSections[subKey], key !== 'Foundation');
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subSectionElem.appendChild(ulElem);
|
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subSectionContainerElem.appendChild(subSectionElem);
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})
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sectionElem.appendChild(subSectionContainerElem);
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} else {
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const projects = sections[key];
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const ulElem = createProjectsList(projects, true);
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sectionElem.appendChild(ulElem);
|
|
}
|
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menuContainer.appendChild(sectionElem)
|
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});
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}
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xhr.onerror = function() {
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console.error("Unable to load projects");
|
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};
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|
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xhr.send();
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</script>
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<script>
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const versioningConfig = {
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githubUser: 'Farama-Foundation',
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githubRepo: 'Gymnasium',
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};
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fetch('/main/_static/versioning/versioning_menu.html').then(response => {
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if (response.status === 200) {
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response.text().then(text => {
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const container = document.createElement("div");
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container.innerHTML = text;
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document.querySelector("body").appendChild(container);
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// innerHtml doenst evaluate scripts, we need to add them dynamically
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Array.from(container.querySelectorAll("script")).forEach(oldScript => {
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const newScript = document.createElement("script");
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Array.from(oldScript.attributes).forEach(attr => newScript.setAttribute(attr.name, attr.value));
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newScript.appendChild(document.createTextNode(oldScript.innerHTML));
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oldScript.parentNode.replaceChild(newScript, oldScript);
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});
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});
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} else {
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console.warn("Unable to load versioning menu", response);
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}
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});
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</script>
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