Lines Matching refs:ABC

28 a helper class :class:`ABC` to alternatively define ABCs through inheritance:
30 .. class:: ABC
33    an abstract base class can be created by simply deriving from :class:`ABC`
36      from abc import ABC
38      class MyABC(ABC):
41    Note that the type of :class:`ABC` is still :class:`ABCMeta`, therefore
42    inheriting from :class:`ABC` requires the usual precautions regarding
59    Use this metaclass to create an ABC.  An ABC can be subclassed directly, and
63    ABC by the built-in :func:`issubclass` function, but the registering ABC
65    implementations defined by the registering ABC be callable (not even via
72       Register *subclass* as a "virtual subclass" of this ABC. For
75          from abc import ABC
77          class MyABC(ABC):
98       Check whether *subclass* is considered a subclass of this ABC.  This means
101       subclass of the ABC.  (This class method is called from the
102       :meth:`__subclasscheck__` method of the ABC.)
105       it returns ``True``, the *subclass* is considered a subclass of this ABC.
107       this ABC, even if it would normally be one.  If it returns
114    For a demonstration of these concepts, look at this example ABC definition::
124       class MyIterable(ABC):
143    The ABC ``MyIterable`` defines the standard iterable method,
180    inheritance; "virtual subclasses" registered with the ABC's :meth:`register`
187       class C(ABC):
255       class C(ABC):
276       class C(ABC):
297       class C(ABC):
307       class C(ABC):
334    The token changes with every call to :meth:`ABCMeta.register` on any ABC.