abc.ABCMeta Class Reference

Inheritance diagram for abc.ABCMeta:

Public Member Functions
def	__new__
def	register
def	__instancecheck__
def	__subclasscheck__

Private Member Functions
def	_dump_registry

Static Private Attributes
int	_abc_invalidation_counter = 0

Detailed Description

Metaclass for defining Abstract Base Classes (ABCs).

Use this metaclass to create an ABC.  An ABC can be subclassed
directly, and then acts as a mix-in class.  You can also register
unrelated concrete classes (even built-in classes) and unrelated
ABCs as 'virtual subclasses' -- these and their descendants will
be considered subclasses of the registering ABC by the built-in
issubclass() function, but the registering ABC won't show up in
their MRO (Method Resolution Order) nor will method
implementations defined by the registering ABC be callable (not
even via super()).

Member Function Documentation

def abc.ABCMeta.__instancecheck__	(		cls,
			instance
	)

Override for isinstance(instance, cls).

def abc.ABCMeta.__new__	(		mcls,
			name,
			bases,
			namespace
	)

def abc.ABCMeta.__subclasscheck__	(		cls,
			subclass
	)

Override for issubclass(subclass, cls).

def abc.ABCMeta._dump_registry (   cls,   file = None  )

private

Debug helper to print the ABC registry.

def abc.ABCMeta.register	(		cls,
			subclass
	)

Register a virtual subclass of an ABC.

Member Data Documentation

int abc.ABCMeta._abc_invalidation_counter = 0

staticprivate

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The documentation for this class was generated from the following file:

• orbits/lib/python2.7/abc.py