44 lines
1.5 KiB
Markdown
44 lines
1.5 KiB
Markdown
---
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title: Python Keywords
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---
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## Python Keywords
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Keywords are the reserved words present in all programming languages .Python has a list of
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<a href='https://docs.python.org/3/reference/lexical_analysis.html#keywords' target='_blank' rel='nofollow'>keywords</a> that cannot be used as function names or identifiers (variable names) .Python is a dynamic language , so the list of keywords may change in future. Currently, there are 33 keywords in Python 3.3 . Trying to use any of these keywords as variables will create a <b>Syntax Error</b> and your Python script will not run:
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>>> False = "Hello campers!"
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File "<ipython-input-27-22bd50eb1a1a>", line 1
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False = "Hello campers!"
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^
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SyntaxError: can't assign to keyword
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>>> break = "Hello campers!"
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File ""<ipython-input-28-e668b2a47f09>"", line 1
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break = "Hello campers!"
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^
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SyntaxError: invalid syntax
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>>> class = "Hello campers!"
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File "<ipython-input-29-189cc6451267>", line 1
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class = "Hello campers!"
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^
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SyntaxError: invalid syntax
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#### List of Keywords
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Keyword | - | - | - | -
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--- | --- | --- | --- | ---
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`False` | `class` | `finally` | `is` | `return`
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`None` | `continue` | `for` | `lambda` | `try`
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`True` | `def` | `from` | `nonlocal` | `while`
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`and` | `del` | `global` | `not` | `with`
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`as` | `elif` | `if` | `or` | `yield`
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`assert` | `else` | `import` | `pass`
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`break` | `except` | `in` | `raise`
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All the keywords except `True` , `False` and `None` are in lowercase as shown above.
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