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Note that frozendict is also a hashed collection that invokes the __hash__ method of objects in data model documentation #148867

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Note that frozendict is also a hashed collection that invokes the __hash__ method of objects in data model documentation #148867

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f085df1
add `frozendict` to 'hashed collections'
jonathandung Apr 22, 2026
6130ede
Readd Oxford comma
jonathandung Apr 22, 2026
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12 changes: 6 additions & 6 deletions Doc/reference/datamodel.rst
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Expand Up @@ -2210,12 +2210,12 @@ Basic customization
pair: built-in function; hash

Called by built-in function :func:`hash` and for operations on members of
hashed collections including :class:`set`, :class:`frozenset`, and
:class:`dict`. The ``__hash__()`` method should return an integer. The only required
property is that objects which compare equal have the same hash value; it is
advised to mix together the hash values of the components of the object that
also play a part in comparison of objects by packing them into a tuple and
hashing the tuple. Example::
hashed collections including :class:`set`, :class:`frozenset`, :class:`dict`,
and :class:`frozendict`. The ``__hash__()`` method should return an integer.
The only required property is that objects which compare equal have the same
hash value; it is advised to mix together the hash values of the components
of the object that also play a part in comparison of objects by packing them
into a tuple and hashing the tuple. Example::

def __hash__(self):
return hash((self.name, self.nick, self.color))
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