Ezio Melotti <ezio.melo...@gmail.com> added the comment:
The doc[0] says:
"""
x and y: if x is false, then x, else y
"""
Boolean operators in Python always return one of the two values (rather than
True/False), and they are also short-circuit operators, so:
* if x is false, the whole expression is false regardless of the value of y,
so x is returned without evaluating y;
* if x is true, y could be either:
* true: so the whole expression is true and y is returned;
* false: so the whole expression is false and y is returned;
>>> '' and True
''
>>> True and ''
''
>>> True and 15
15
The behavior matches the documentation and (False and True) returns False,
because x (False in this case) is false.
[0]: http://docs.python.org/library/stdtypes.html#boolean-operations-and-or-not
----------
nosy: +ezio.melotti
resolution: -> invalid
stage: -> committed/rejected
status: open -> closed
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11737>
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