The Python Software Foundation is the charitable organization behind the Python programming language.

The official home of the Python Programming Language

An overview of differences between BLAS / LAPACK implementations and their packaging.

Effective August 1st, 2025, the PSF is temporarily pausing our Grants Program after reaching our 2025 grant budget cap earlier than expected. We know how important this program is to many in our community and making this decision was difficult. This is a necessary step to protect both the future of the program and the short- and long-term sustainability of the PSF. (If this moves you immediately to donate to the PSF, we welcome your contributions via our donations page).

This is an informal, unscientific survey of (sort of) Python questions, with which I'd like to try to make something amusing, maybe something involving families feuding somehow. (I may have been inspi...

Findings and recommendations to make Bokeh tools and plots more accessible

The PSF’s Grants Program is a key plank in our charitable mission to promote, protect, and advance the Python programming language and to support and facilitate the growth of a diverse and international community of Python programmers. After much research, input, and analysis, the PSF is pleased to share the PSF Grants Program 2024 Transparency Report. The report includes context, numbers, analysis, and next steps for the Program. Similar to our PSF Grants Program 2022 & 2023 Transparency Report, this 2024 report reflects the outcome of a significant amount of work. There are some differences in the position we are in as we approached the development of this report:

From the Executive Director Hiring Committee — Julie Hollek (Chair), Sanket Verma, Wolf Vollprecht, Jim Weiss, Michael Zargham

Interdisciplinary Summer Research Experience for Undergraduates with Disabilities

Another big release day! Python 3.13.1 and 3.12.8 were regularly scheduled releases, but they do contain a few security fixes. That makes it a nice time to release the security-fix-only versions too, ...

I'm on the security report triage team for CPython, pip, urllib3, Requests, and a handful of other open source projects. I'm also in a trusted position such that I get "tagged in" to other open sou...

In the past week I had two people separately tell me what they thought the PSF Conduct WG did and both were wrong (and incidentally in the same way). As such, I wanted to clarify what exactly the WG d...