Module brevettiai.utils.singleton

Classes

class Singleton (cls)

Expand source code

class Singleton:

    def __init__(self, cls):
        self._cls = cls

    def Instance(self):
        try:
            return self._instance
        except AttributeError:
            self._instance = self._cls()
            return self._instance

    def __call__(self):
        raise TypeError('Singletons must be accessed through `Instance()`.')

    def __instancecheck__(self, inst):
        return isinstance(inst, self._cls)

Methods

def Instance(self)

Expand source code

def Instance(self):
    try:
        return self._instance
    except AttributeError:
        self._instance = self._cls()
        return self._instance