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Obfuscating python source code with pyarmor

 ·   ·  β˜• 2 min read

PyArmor is a command line tool used to obfuscate python scripts, bind obfuscated scripts to fixed machine or expire obfuscated scripts. It protects Python scripts by the following ways:

Install pyarmor

pip install pyarmor

  • Obfuscate code object to protect constants and literal strings.
  • Obfuscate co_code of each function (code object) in runtime.
  • Clear f_locals of frame as soon as code object completed execution.
  • Verify the license file of obfuscated scripts while running it.

Look at what happened after is obfuscated by PyArmor. Here are the files list in the output path dist:

pytransform/ or _pytransform.dll or _pytransform.dylib

dist/ is obfuscated script, the content is:
from pytransform import pyarmor_runtime
__pyarmor__(__name__, __file__, b'\x06\x0f...', 1)

There is an extra folder pytransform called Runtime Package, which are the only required to run or import obfuscated scripts. So long as this package is in any Python path, the obfuscated script dist/ can be used as normal Python script.

The original python scripts can be replaced with obfuscated scripts seamlessly.
Support Platforms

Python 2.5, 2.6, 2.7 and Python3
win32, win_amd64, linux_i386, linux_x86_64, macosx_x86_64
Embedded Platform: Raspberry Pi, Banana Pi, Orange Pi, TS-4600 / TS-7600

Quick Start


pip install pyarmor

Obfuscate scripts:

pyarmor obfuscate

Run obfuscated scripts:

cd dist

Obfuscate scripts with an expired license:

pyarmor licenses --expired 2018-12-31 r001
pyarmor obfuscate --with-license licenses/r001/license.lic

Pack obfuscated scripts to one bundle:

pip install pyinstaller
pyarmor pack

There is also a web-ui package pyarmor-webui:

pip install pyarmor-webui

Start webui, open web page in browser:


Ohidur Rahman Bappy
Ohidur Rahman Bappy
πŸ“šLearner 🐍 Developer