The newly approved Python Enhancement Proposal 751 gives Python a standard lock file format for specifying the dependencies of projects. Here’s the what, why, and when.

Python’s builders have accepted a proposal to create a universal lock file format for Python projects that would specify dependencies, enabling installation reproducibility in a Python environment.

Last year, Microsoft funded a project for the Python Software Foundation (PSF), led by Python creator Guido van Rossum and Shannon, to make Python twice as fast as the current stable 3.10 series ...