if...else...
1 movies = ["The Holy Grail",1975,"Terry Jones & Terry Gilliam",91, 2 ["Graham Chapman",["Michael Palin","John Cleese", 3 "Terry Gilliam","Eric Idle","Terry Jones"]]] 4 5 for i in movies: 6 if isinstance(i,list): 7 for mov in i: 8 if isinstance(mov,list): 9 for mv in mov: 10 print (mv) 11 else: 12 print (mov) 13 else: 14 print (i)