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Fix-up intro paragraph for collections docs.

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Raymond Hettinger 2009-02-17 08:33:01 +00:00
parent 7c98a6d4dc
commit f746a1f1e4
1 changed files with 14 additions and 14 deletions
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Doc/library/collections.rst
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@ -16,30 +16,30 @@
__name__ = '<doctest>' __name__ = '<doctest>'
This module implements high-performance container datatypes. Currently, This module implements high-performance container datatypes. Currently,
there are two datatypes, :class:`deque` and :class:`defaultdict`, and there are three datatypes, :class:`Counter`, :class:`deque` and
one datatype factory function, :func:`namedtuple`. :class:`defaultdict`, and one datatype factory function, :func:`namedtuple`.
.. versionchanged:: 2.5
Added :class:`defaultdict`.
.. versionchanged:: 2.6
Added :func:`namedtuple`.
The specialized containers provided in this module provide alternatives The specialized containers provided in this module provide alternatives
to Python's general purpose built-in containers, :class:`dict`, to Python's general purpose built-in containers, :class:`dict`,
:class:`list`, :class:`set`, and :class:`tuple`. :class:`list`, :class:`set`, and :class:`tuple`.
Besides the containers provided here, the optional :mod:`bsddb` .. versionchanged:: 2.4
module offers the ability to create in-memory or file based ordered Added :class:`deque`.
dictionaries with string keys using the :meth:`bsddb.btopen` method.
.. versionchanged:: 2.5
Added :class:`defaultdict`.
.. versionchanged:: 2.6
Added :func:`namedtuple` and added abstract base classes.
.. versionchanged:: 2.7
Added :class:`Counter`.
In addition to containers, the collections module provides some ABCs In addition to containers, the collections module provides some ABCs
(abstract base classes) that can be used to test whether a class (abstract base classes) that can be used to test whether a class
provides a particular interface, for example, is it hashable or provides a particular interface, for example, whether it is hashable or
a mapping. a mapping.
.. versionchanged:: 2.6
Added abstract base classes.
ABCs - abstract base classes ABCs - abstract base classes
---------------------------- ----------------------------