1# test list.__iadd__ and list.extend (they are equivalent) 2 3l = [1, 2] 4l.extend([]) 5print(l) 6 7l.extend([3]) 8print(l) 9 10l.extend([4, 5]) 11print(l) 12 13l.extend(range(6, 10)) 14print(l) 15 16l.extend("abc") 17print(l) 18 19l = [1, 2] 20l += [] 21print(l) 22 23l += [3] 24print(l) 25 26l += [4, 5] 27print(l) 28 29l += range(6, 10) 30print(l) 31 32l += "abc" 33print(l) 34