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fix singleton.py

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honue 2023-11-29 12:46:49 +08:00
parent 615a52cef9
commit d77644ab16
1 changed files with 4 additions and 3 deletions
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7
app/utils/singleton.py
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@ -9,9 +9,10 @@ class Singleton(abc.ABCMeta, type):
_instances: dict = {} _instances: dict = {}
def __call__(cls, *args, **kwargs): def __call__(cls, *args, **kwargs):
if cls not in cls._instances: key = (cls, args, frozenset(kwargs.items()))
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs) if key not in cls._instances:
return cls._instances[cls] cls._instances[key] = super().__call__(*args, **kwargs)
return cls._instances[key]
class AbstractSingleton(abc.ABC, metaclass=Singleton): class AbstractSingleton(abc.ABC, metaclass=Singleton):