Exploring and decompiling python bytecode [closed]

问题

Lets say I have:

>>> def test(a):    
>>>    print a

Now, I want to explore see how test looks like in its compiled form.

>>> test.func_code.co_code
'|\x00\x00GHd\x00\x00S'

I can get the disassembled form using the dis module:

>>> import dis
>>> dis.dis(test)
  2           0 LOAD_FAST                0 (a)
              3 PRINT_ITEM
              4 PRINT_NEWLINE
              5 LOAD_CONST               0 (None)
              8 RETURN_VALUE

Is there an opensource and maintained decompiler I could use to turn the bytecode back into readable python code?

update: thanks for suggesting decompile, but it's outdated (python2.3) and no one maintains it anymore. Is there anything for python2.5 or later?

回答1:

UnPyc

http://sourceforge.net/projects/unpyc/

It is a maintained fork of the old decompyle updated to work with 2.5 and 2.6.

回答2:

get uncompyle2 from github! :)

回答3:

There is also now uncompyle6 which is written in Python and pycdc which is written in C++.

Both of these handle several versions of Python bytecode including Python 2 versions and Python 3 versions.

回答4:

decompyle

Decompyle is a python disassembler and decompiler which converts Python byte-code (.pyc or .pyo) back into equivalent Python source. Verification of the produced code (re-compiled) is avaliable as well.

回答5:

Uncompyle2 worked for me with Python 2.7.

https://github.com/wibiti/uncompyle2

Quick how to use uncompyle2 , Install it and then

>>>import uncompyle2
>>> with open("decompiled.py","wb") as f:
...   uncompyle2.uncompyle_file("compiled.pyc",f)

It will generate source code back in decompile.py

回答6:

In addition to what DevC wrote:

Uncompyle2 works with Python 2.7
with Uncompyle2, you can also un-compile from the command line:

$ uncompyle2 compiled.pyc >> source.uncompyle2.py
to install Uncompyle2, do

$ git clone https://github.com/wibiti/uncompyle2

$ cd uncompyle2

$ sudo ./setup.py install

来源：https://stackoverflow.com/questions/1149513/exploring-and-decompiling-python-bytecode

标签

python

decompiling