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Code Issues Releases Wiki Activity

Remove an incorrect implementation detail

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Nick Coghlan 2012-05-20 21:22:27 +10:00
parent dc9b2555a8
commit 305acf2fff
1 changed files with 0 additions and 5 deletions
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Doc/reference/datamodel.rst
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@ -1262,16 +1262,11 @@ Basic customization
immutable (if the object's hash value changes, it will be in the wrong hash
bucket).
User-defined classes have :meth:`__eq__` and :meth:`__hash__` methods
by default; with them, all objects compare unequal (except with themselves)
and ``x.__hash__()`` returns an appropriate value such that ``x == y``
implies both that ``x is y`` and ``hash(x) == hash(y)``.
.. impl-detail::
CPython uses ``hash(id(x))`` as the default hash for class instances.
Classes which inherit a :meth:`__hash__` method from a parent class but
change the meaning of :meth:`__eq__` such that the hash value returned is no
longer appropriate (e.g. by switching to a value-based concept of equality