Name
__nonzero__
Synopsis
__nonzero__(self)
When evaluating x as true or false (see Section 4.2.6), for example on a call to
bool(
x
)
in Python 2.2.1 and later, Python calls
x
.__nonzero__( ),
which should return True or
False. When __nonzero__ is
not present, Python calls __len__ instead, and
takes x as false when
x
.__len__( ) returns
0. When neither __nonzero__
nor __len__ is present, Python always takes
x as true.
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