import dis a = 257 b = 256 b += 1 def f(): c = a, b x, y = c print x is y f() dis.dis(f)
Standard input is empty
False 8 0 LOAD_GLOBAL 0 (a) 3 LOAD_GLOBAL 1 (b) 6 BUILD_TUPLE 2 9 STORE_FAST 0 (c) 9 12 LOAD_FAST 0 (c) 15 UNPACK_SEQUENCE 2 18 STORE_FAST 1 (x) 21 STORE_FAST 2 (y) 10 24 LOAD_FAST 1 (x) 27 LOAD_FAST 2 (y) 30 COMPARE_OP 8 (is) 33 PRINT_ITEM 34 PRINT_NEWLINE 35 LOAD_CONST 0 (None) 38 RETURN_VALUE