a |_@sdZddZGdddeZGdddeZGdddeZz,d d lm Z m Z m Z m Z m Z mZmZmZWn(eyd d lmZm Z d e_Yn0Gd ddeZGdddedZdS)z3Abstract Base Classes (ABCs) according to PEP 3119.cCs d|_|S)a<A decorator indicating abstract methods. Requires that the metaclass is ABCMeta or derived from it. A class that has a metaclass derived from ABCMeta cannot be instantiated unless all of its abstract methods are overridden. The abstract methods can be called using any of the normal 'super' call mechanisms. abstractmethod() may be used to declare abstract methods for properties and descriptors. Usage: class C(metaclass=ABCMeta): @abstractmethod def my_abstract_method(self, ...): ... T)__isabstractmethod__)Zfuncobjr/usr/local/lib/python3.9/abc.pyabstractmethodsrcs$eZdZdZdZfddZZS)abstractclassmethodztA decorator indicating abstract classmethods. Deprecated, use 'classmethod' with 'abstractmethod' instead. Tcsd|_t|dSNTrsuper__init__selfcallable __class__rrr $szabstractclassmethod.__init____name__ __module__ __qualname____doc__rr __classcell__rrr rrsrcs$eZdZdZdZfddZZS)abstractstaticmethodzvA decorator indicating abstract staticmethods. Deprecated, use 'staticmethod' with 'abstractmethod' instead. Tcsd|_t|dSrrr r rrr 1szabstractstaticmethod.__init__rrrr rr)src@seZdZdZdZdS)abstractpropertyzoA decorator indicating abstract properties. Deprecated, use 'property' with 'abstractmethod' instead. TN)rrrrrrrrrr6sr)get_cache_token _abc_init _abc_register_abc_instancecheck_abc_subclasscheck _get_dump_reset_registry _reset_caches)ABCMetarabccsReZdZdZfddZddZddZdd Zdd d Zd dZ ddZ Z S)r aMetaclass 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()). c s&tj||||fi|}t||S)N)r__new__r)ZmclsnamebasesZ namespacekwargsclsr rrr"TszABCMeta.__new__cCs t||S)z{Register a virtual subclass of an ABC. Returns the subclass, to allow usage as a class decorator. )rr&ZsubclassrrrregisterYszABCMeta.registercCs t||S)z'Override for isinstance(instance, cls).)r)r&Zinstancerrr__instancecheck__`szABCMeta.__instancecheck__cCs t||S)z'Override for issubclass(subclass, cls).)rr'rrr__subclasscheck__dszABCMeta.__subclasscheck__NcCstd|jd|j|dtdt|dt|\}}}}td||dtd||dtd||dtd||dd S) z'Debug helper to print the ABC registry.zClass: .)filezInv. counter: z_abc_registry: z _abc_cache: z_abc_negative_cache: z_abc_negative_cache_version: N)printrrrr)r&r,Z _abc_registryZ _abc_cacheZ_abc_negative_cacheZ_abc_negative_cache_versionrrr_dump_registryhs zABCMeta._dump_registrycCs t|dS)z.Clear the registry (for debugging or testing).N)rr&rrr_abc_registry_cleartszABCMeta._abc_registry_clearcCs t|dS)z,Clear the caches (for debugging or testing).N)rr/rrr_abc_caches_clearxszABCMeta._abc_caches_clear)N) rrrrr"r(r)r*r.r0r1rrrr rr Gs  r c@seZdZdZdZdS)ABCzVHelper class that provides a standard way to create an ABC using inheritance. rN)rrrr __slots__rrrrr2}sr2) metaclassN)rr classmethodr staticmethodrpropertyrZ_abcrrrrrrrr ImportErrorZ_py_abcr rtyper2rrrrs   ,  6