import dis def simply(a): print(a) def fib(n): if n < 2: return n current, next = 0,1 while n: current, next = next, current+ next n -= 1 return current dis.code_info(fib) dis.dis(fib) #display the bytecode print(fib.__code__) #display the bytecode print(fib.__code__.co_consts) # const within the code (none is function return value) print(fib.__code__.co_name) #variable names print(fib.__code__.co_code) #machine byte code print(dis.opname[124]) #show the 124 byte code 's opname