PySonar2 - a type inferencer for Python

PySonar2 is a type inferencer and indexer for Python, which performs interprocedural analysis to infer types.

Checkout code

git clone https://github.com/yinwang0/pysonar2.git
git checkout tags/v2.1.1

How to build

mvn package

How to use

PySonar2 is mainly designed as a library for Python IDEs, other developer tools and code search engines, so its interface may not be as appealing as an end-user tool, but for your understanding of the library's capabilities, a reasonably nice demo program has been built.

You can build a simple "code-browser" of the Python 2.7 standard library with the following command line:

java -jar target/pysonar-<version>.jar /usr/lib/python2.7 ./html

This will take a few minutes. You should find some interactive HTML files inside the html directory after this process.

System requirements

• Python 2.7.x
• Python 3.x (if your code uses Python3)
• Java 8
• maven

Environment variables

PySonar2 uses CPython's ast package to parse Python code, so please make sure you have python or python3 installed and pointed to by the PATH environment variable. If you have them in different names, please make symbol links.

PYTHONPATH environment variable is used for locating the Python standard libraries. It is important to point it to the correct Python library, for example

export PYTHONPATH=/usr/lib/python2.7

If this is not set up correctly, references to library code will not be found.

License

Apache 2.0 License. See LICENSE file.