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README.rst

uncompyle2

A Python 2.5, 2.6, 2.7 byte-code decompiler, written in Python 2.7

Introduction

'uncompyle2' converts Python byte-code back into equivalent Python source code. It accepts byte-code from Python version 2.5 to 2.7. Additionally, it will only run on Python 2.7.

The generated source is very readable: docstrings, lists, tuples and hashes get pretty-printed.

'uncompyle2' is based on John Aycock's generic small languages compiler 'spark' (http://www.csr.uvic.ca/~aycock/python/) and his prior work on a tool called 'decompyle'. This tool has been vastly improved by Hartmut Goebel `http://www.crazy-compilers.com/`_

# Additional note (3 July 2004, Ben Burton):

This software is no longer available from the original website. It has now become a commercial decompilation service, with no software available for download.

Any developers seeking to make alterations or enhancements to this code should therefore consider these debian packages an appropriate starting point.

# Additional note (5 June 2012):

The decompilation of python bytecode 2.5 & 2.6 is based on the work of Eloi Vanderbeken. bytecode is translated to a pseudo 2.7 python bytecode and then decompiled.

Features

  • decompiles Python byte-code into equivalent Python source
  • decompiles byte-code from Python version 2.5, 2.6, 2.7
  • pretty-prints docstrings, hashes, lists and tuples
  • reads directly from .pyc/.pyo files, bulk-decompile whole directories
  • output may be written to file, a directory or to stdout
  • option for including byte-code disassembly into generated source

For a list of changes please refer to the 'CHANGES' file.

Requirements

uncompyle2 requires Python 2.7

Installation

You may either create a RPM and install this, or install directly from the source distribution.

Creating RPMS:

python setup.py bdist_rpm

### Installation from the source distribution:

python setup.py install

To install to a user's home-dir:

python setup.py install --home=<dir>

To install to another prefix (eg. /usr/local)

python setup.py install --prefix=/usr/local

For more information on 'Installing Python Modules' please refer to http://www.python.org/doc/current/inst/inst.html

Usage

./scripts/uncompyle2 -h prints usage

./test_pythonlib.py test files and python library

Known Bugs/Restrictions

No support for python 3.2

It currently reconstructs most of Python code but probably needs to be tested more thoroughly. All feedback welcome

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