4330278496 4330278496 4330278496 4330278496 4450065536 4450065696 4450065376 4437969808 Python3.7 4331742784 4331742624 4331742544 4331047184 a = (1, 2,) b = (1, 2,) d = (1, 2,) c = (1, 2,) print(id(a), id(b), id(d), id(c)) a = [1, 2] b = [1, 2] d = [1, 2] c = [1, 2] print(id(a), id(b), id(d), id(c)) a = {'1': 1} b = {'1': 1} d = {'1': 1} c = {'1': 1} print(id(a), id(b), id(d), id(c)) Python3.6 4346801224 4346801288 4346801352 4346801416