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Add example for the abc module.

This commit is contained in:
Raymond Hettinger 2011-01-18 00:19:30 +00:00
parent ca904be778
commit 7ec790d1fa
1 changed files with 13 additions and 5 deletions
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Doc/whatsnew/3.2.rst
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@ -815,9 +815,9 @@ collections
(Contributed by Raymond Hettinger.) (Contributed by Raymond Hettinger.)
* The :class:`collections.deque` grew two new methods :meth:`~collections.deque.count` * The :class:`collections.deque` class grew two new methods
and :meth:`collections.deque.reverse` that make them more substitutable for :meth:`~collections.deque.count` and :meth:`~collections.deque.reverse` that
:class:`list` when needed: make them more substitutable for :class:`list` objects:
>>> d = deque('simsalabim') >>> d = deque('simsalabim')
>>> d.count('s') >>> d.count('s')
@ -914,9 +914,17 @@ abc
The :mod:`abc` module now supports :func:`~abc.abstractclassmethod` and The :mod:`abc` module now supports :func:`~abc.abstractclassmethod` and
:func:`~abc.abstractstaticmethod`. :func:`~abc.abstractstaticmethod`.
These tools make it possible to define an :term:`Abstract Base Class` that These tools make it possible to define an :term:`abstract base class` that
requires a particular :func:`classmethod` or :func:`staticmethod` to be requires a particular :func:`classmethod` or :func:`staticmethod` to be
implemented. implemented::
class Temperature(metaclass=ABCMeta):
@abc.abstractclassmethod
def from_farenheit(self, t):
...
@abc.abstractclassmethod
def from_celsium(self, t):
...
(Patch submitted by Daniel Urban; :issue:`5867`.) (Patch submitted by Daniel Urban; :issue:`5867`.)