#! /usr/bin/python3.4

import dis
import operator
import opcode
# from display import *

## define a simple function
def s():
    a = 1
    b = 2
    return (a + b)

## check out the attributes of the function
dir(s)

## check out the attributes of the function's __code__ attribute
dir(s.__code__)

## print out the value of the attributes of the __code__ attribute 
def xf(func, all=False):
    for x in (dir(func.__code__)):
        if all:
            print ("{}:\t{}".format(x, func.__code__.__getattribute__(x)))
        elif x.startswith("co"):
            print ("{}:\t{}".format(x, func.__code__.__getattribute__(x)))

## retrieve the bytecodes
def getbytes(f):
    return f.__code__.co_code

## print out the bytecodes
def printbytes(f):
    for b in getbytes(f):
        print (b)

## the opcode module can help tell us what these bytecodes mean.
dir(opcode)

## print out the opcodes
def printopcodes(f):
    for b in getbytes(f):
        print ("{}: {}".format(b, opcode.opname[b]))

## the dis module can really disassemble the bytecodes

def showme(f):
    dis.dis(f)
    print(dis.code_info(f))