static_vars_in_python.py

def static_var(name, value):
    def helper(fun):
        setattr(fun, name, value)
        return fun
    return helper
  
    
@static_var("my_var", 0)
@static_var("my_other_var", "HAL")
def foo():    
    print("my_var is {}".format(foo.my_var))
    print("my_other_var is {}\n".format(foo.my_other_var))
    foo.my_var += 1
    foo.my_other_var = "".join(map(lambda x: chr(ord(x) + foo.my_var), foo.my_other_var))

    
for i in range(2):
    foo()

Output:

my_var is 0
my_other_var is HAL

my_var is 1
my_other_var is IBM