This directory contains a collection of executable Python scripts that are useful while building, extending or managing Python. 2to3 Main script for running the 2to3 conversion tool combinerefs.py A helper for analyzing PYTHONDUMPREFS output idle3 Main program to start IDLE parse_html5_entities.py Utility for parsing HTML5 entity definitions pydoc3 Python documentation browser run_tests.py Run the test suite with more sensible default options stable_abi.py Stable ABI checks and file generators.