Is 'file' a keyword in python?

python keyword

No, file is a builtin, not a keyword:

>>> import keyword>>> keyword.iskeyword('file')False>>> import __builtin__>>> hasattr(__builtin__, 'file')True

It can be seen as an alias for open(), but it has been removed from Python 3, as the new io framework replaced it. Technically, it is the type of object returned by the open() function.

python keyword

file is neither a keyword nor a builtin in Python 3.

>>> import keyword>>> 'file' in keyword.kwlistFalse>>> import builtins>>> 'file' in dir(builtins)False

file is also used as variable example from Python 3 doc.

with open('spam.txt', 'w') as file:    file.write('Spam and eggs!')

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