from cloudpickle import dumps, loads VARIABLE = "uninitialized" def func1(): global VARIABLE print("[func1] global var id{}: {}".format(id(VARIABLE), VARIABLE)) VARIABLE = "initialized" return VARIABLE # Dump and reload the function reloaded_f1 = loads(dumps(func1)) # The function call does not change the value of the global VARIABLE assert reloaded_f1() == "initialized" print(VARIABLE) # Changing the value of VARIABLE does not affect the function VARIABLE = 'test' assert reloaded_f1() == "initialized" # But redumping it changes the value assert loads(dumps(func1))() == "initialized" print(VARIABLE)