python- multiple threads share global variables

Threading Import 
Import Time 

# define a variable 
the nums = [. 11, 22 is] 


DEF test1 (the nums): 
    nums.append (33 is) 
    Print ( '----------- in test1 --- NUM = {} '.format (the nums)) 


(DEF test2): 
    . Print (' ----------- in test2 NUM = {} --- 'the format (the nums)) 


DEF main (): 
    T1 = Threading .Thread (target = test1, args = (nums,)) # args pass parameters to use in the form of tuples 
    T2 of the threading.Thread = (target = test2) 

    t1.start () 
    the time.sleep (. 1) 

    t2.start ( ) 
    the time.sleep (. 1) 

    Print ( '----------- in the Thread main NUM = {} ---' the format (the nums.)) 


IF the __name__ == '__main__': 
    main ()