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Goldenmask is a tool to protect your python source code easily. It has two methods at the moment: using Compileall or using Cython. It has a corresponding option named --layer/-l, you can choose your favorite method by yourself. Meanwhile, it can protect different file types: python files end with .py, wheel packages end with .whl and source package end with .tar.gz.

Goldenmask is a name derived from a Chinese kungfu named "JinZhongZhao". Because it is not a qualified phrase in a sense, this name is so unique that can be used as a temporary compilation directory named __goldenmask__ and a compilation information file named .goldenmask which contains the detailed python version string (from sys.version) and the platform string (from platform.unmae()) .

Let's try to goldenmask now!

$ pip install goldenmask

# The default method is Compileall
$ goldenmask yourpythonfile.py
All done! ✨ 🍰 ✨

$ tree -a .
.
├── __goldenmask__
│   ├── .goldenmask
│   └── yourpythonfile.pyc
└── yourpythonfile.py

1 directory, 3 files

# Use Cython to generate .so file and replace the source python file
$ goldenmask -i -l 2 yourpythonfile.py
All done! ✨ 🍰 ✨

$ tree -a .
.
├── .goldenmask
└── yourpythonfile.so

0 directories, 2 files

Goldenmask is distributed on PyPI and supports Python 3.6+. You can simply install goldenmask as below:

$ pip install -U goldenmask

However, it's a better choice to use a virtual environment:

$ python -m venv env
# On Windows:
$ .\venv\Scripts\activate
# On Linux:
$ source env/bin/activate
$ pip install goldenmask --upgrade

Because goldenmask depends on Cython, you should make sure that there is an appropriate C compiler on your machine. You can see the detailed guide on Cython's documentation. By the way, if you works on a Linux system, you can easily fetch everything you need with one command sudo apt-get install build-essential on Ubuntu and yum groupinstall "Development Tools" on Centos. However, If you are using Mac OS X or Windows, you may spend quite some time installing this compilers.

You can get everything using option --help:

$ goldenmask --help
Usage: goldenmask [OPTIONS] [FILES_OR_DIRS]...

  Goldenmask is a tool to protect your python source code easily.

  FILES_OR_DIRS can be python files, wheel packages,source packages or dirs
  contain python files.

Options:
  -l, --layer <int>  Level of protection: 1 - compileall; 2 - cython.
  -i, --inplace      Whether compile python files in place.
  --no_smart         This will copy and compile everything you specified.
  --help             Show this message and exit.

portect the wheel package：

$ goldenmask goldenmask-0.2.1-py3-none-any.whl 
All done! ✨ 🍰 ✨
$ tree -a .
.
├── __goldenmask__
│   ├── .goldenmask
│   └── goldenmask-0.2.1-py3-none-any.whl
├── .goldenmask
└── goldenmask-0.2.1-py3-none-any.whl

1 directory, 4 files

protect the source packege：

$ goldenmask -l 2 --inplace goldenmask-0.1.2.tar.gz  
running build_ext
building 'goldenmask.cli' extension
...
All done! ✨ 🍰 ✨
$ tree -a .
.
├── .goldenmask
└── goldenmask-0.1.2.tar.gz

protect the dir contians python files：

$ goldenmask pip-download/
All done! ✨ 🍰 ✨

Goldenmask uses Poetry to develop, you can follow these steps to get involved：

1. fork the project goldenmask
2. clone the forked project
3. install Poetry
4. run poetry install to install dependencies，modify the code, run the tests and finally submit pull requests

The blog from Prodesire.