What does all mean in Python?
In Python, the
all() function returns
True if all elements of an iterable (e.g. list, tuple, etc.) are true, and
False otherwise. For example:
>>> all([True, True, True]) True >>> all([True, False, True]) False
An empty iterable returns
>>> all() True
It can also be used on a generator object.
>>> all(i > 2 for i in [1, 2, 3, 4]) False
It is equivalent to the following code:
>>> def all(iterable): ... for element in iterable: ... if not element: ... return False ... return True
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