Cornea/src/new-src/utils/singleton.py

25 lines
388 B
Python

# Python imports
# Lib imports
# Application imports
class SingletonError(Exception):
pass
class Singleton:
ccount = 0
def __new__(cls, *args, **kwargs):
obj = super(Singleton, cls).__new__(cls)
cls.ccount += 1
if cls.ccount == 2:
raise SingletonError(f"Exceeded {cls.__name__} instantiation limit...")
return obj