Override for isinstance(instance, cls).
(cls, instance)
| 90 | cls._abc_negative_cache.clear() |
| 91 | |
| 92 | def __instancecheck__(cls, instance): |
| 93 | """Override for isinstance(instance, cls).""" |
| 94 | # Inline the cache checking |
| 95 | subclass = instance.__class__ |
| 96 | if subclass in cls._abc_cache: |
| 97 | return True |
| 98 | subtype = type(instance) |
| 99 | if subtype is subclass: |
| 100 | if (cls._abc_negative_cache_version == |
| 101 | ABCMeta._abc_invalidation_counter and |
| 102 | subclass in cls._abc_negative_cache): |
| 103 | return False |
| 104 | # Fall back to the subclass check. |
| 105 | return cls.__subclasscheck__(subclass) |
| 106 | return any(cls.__subclasscheck__(c) for c in (subclass, subtype)) |
| 107 | |
| 108 | def __subclasscheck__(cls, subclass): |
| 109 | """Override for issubclass(subclass, cls).""" |
nothing calls this directly
no test coverage detected