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_py_abc

This module has no docstring.

Classes

ABCMeta

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()).

mro(self, /)

  Return a type's method resolution order.

register(cls, subclass)

  Register a virtual subclass of an ABC.

          Returns the subclass, to allow usage as a class decorator.

WeakSet

add(self, item)

clear(self)

copy(self)

difference(self, other)

difference_update(self, other)

discard(self, item)

intersection(self, other)

intersection_update(self, other)

isdisjoint(self, other)

issubset(self, other)

issuperset(self, other)

pop(self)

remove(self, item)

symmetric_difference(self, other)

symmetric_difference_update(self, other)

union(self, other)

update(self, other)

Functions

get_cache_token

get_cache_token()

  Returns the current ABC cache token.

      The token is an opaque object (supporting equality testing) identifying the
      current version of the ABC cache for virtual subclasses. The token changes
      with every call to ``register()`` on any ABC.