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improved singleton

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Sagi Frimer
2019-04-10 19:23:40 +03:00
parent 73e044ed89
commit cf7de01338
3 changed files with 12 additions and 20 deletions
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8
backend/app/classes/Singleton.py Normal file
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@@ -0,0 +1,8 @@
class Singleton(type):
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
return cls._instances[cls]