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#6428: py3k requires that __bool__ return a bool (and not an int)

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Fix the error message and the documentation.
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Amaury Forgeot d'Arc 2009-07-07 00:43:08 +00:00
parent dd07ebb44a
commit 097cd072c0
3 changed files with 11 additions and 9 deletions
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10
Doc/reference/datamodel.rst
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@ -1254,11 +1254,11 @@ Basic customization
.. index:: single: __len__() (mapping object method)
Called to implement truth value testing and the built-in operation
``bool()``; should return ``False`` or ``True``, or their integer equivalents
``0`` or ``1``. When this method is not defined, :meth:`__len__` is called,
if it is defined, and the object is considered true if its result is nonzero.
If a class defines neither :meth:`__len__` nor :meth:`__bool__`, all its
instances are considered true.
``bool()``; should return ``False`` or ``True``. When this method is not
defined, :meth:`__len__` is called, if it is defined, and the object is
considered true if its result is nonzero. If a class defines neither
:meth:`__len__` nor :meth:`__bool__`, all its instances are considered
true.
.. _attribute-access: