Pure validator

Purity validator for Python code.

Overview

Pure validator is a static analysis tool for checking the purity of Python functions and modules. It analyzes Python source code and reports on side effects, global state usage, and other purity-related concerns.

Suppose you have the following code:

def impure_function(): # pragma: pure
    print("This is impure!")

Running the purity checker, will report an error similar to:

example.py:3: Function 'impure_function' is marked as pure but has side effects (print statement)

There is also a flake8 plugin available that can be used to check purity violations in your codebase.

$ flake8 --select PURE file-or-directory

For more information on using flake8, you can refer to the official flake8 documentation.

Features

• Recursively analyzes Python files in directories
• Reports purity violations and messages
• CLI and module entry point (python -mpure_validator)
• Easy integration with CI/CD

Installation

You can install Pure via pip:

$ pip install pure-validator

Usage

Command Line

$ pure-validator file-or-directory

Contributing

Contributions are welcome! Please open issues or pull requests on GitHub.

License

This project is licensed under the terms of the license found in the LICENSE file.