[Python] Singleton

Multiple ways :

• Way 1

class MyClass:
  def __init__(self):
    pass


  @classmethod
  def get(cls):
    try:
      return cls.instance
    except AttributeError:
      cls.instance = MyClass()
      return cls.instance

• Way 2

import sys

this = sys.modules[__name__]

class MyClass:
  def __init__(self):
    pass

def get_my_singleton():
  try:
    return this.my_singleton
  except AttributeError:
    this.my_singleton = MyClass()
    return this.my_singleton
More details about this way: https://stackoverflow.com/a/35904211