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Original README

Decompyle++

A Python Byte-code Disassembler/Decompiler

Decompyle++ aims to translate compiled Python byte-code back into valid and human-readable Python source code. While other projects have achieved this with varied success, Decompyle++ is unique in that it seeks to support byte-code from any version of Python.

Decompyle++ includes both a byte-code disassembler (pycdas) and a decompiler (pycdc).

As the name implies, Decompyle++ is written in C++. If you wish to contribute, please fork us on github at https://github.com/zrax/pycdc

Building Decompyle++

• Generate a project or makefile with CMake (See CMake's documentation for details)

  • The following options can be passed to CMake to control debug features:

    Option	Description
    -DCMAKE_BUILD_TYPE=Debug	Produce debugging symbols
    -DENABLE_BLOCK_DEBUG=ON	Enable block debugging output
    -DENABLE_STACK_DEBUG=ON	Enable stack debugging output

• Build the generated project or makefile

  • For projects (e.g. MSVC), open the generated project file and build it
  • For makefiles, just run make
  • To run tests (on *nix or MSYS), run make check

Usage

To run pycdas, the PYC Disassembler: ./pycdas [PATH TO PYC FILE] The byte-code disassembly is printed to stdout.

To run pycdc, the PYC Decompiler: ./pycdc [PATH TO PYC FILE] The decompiled Python source is printed to stdout. Any errors are printed to stderr.

Marshalled code objects: Both tools support Python marshalled code objects, as output from marshal.dumps(compile(...)).

To use this feature, specify -c -v <version> on the command line - the version must be specified as the objects themelves do not contain version metadata.

Authors, Licence, Credits

Decompyle++ is the work of Michael Hansen and Darryl Pogue.

Additional contributions from:

• charlietang98
• Kunal Parmar
• Olivier Iffrig
• Zlodiy

It is released under the terms of the GNU General Public License, version 3; See LICENSE file for details.