astral-sh/python-build-standalone 20250808

on GitHub

Distribution changes

• On Mac/Linux, libtcl, libtk, and _tkinter are built as separate shared objects, which fixes matplotlib's tkagg backend (the default on Linux), Pillow's PIL.ImageTk library, and other extension modules that need to use libtcl/libtk directly. Note that this change also stops shipping Tix, a deprecated Tk extension that was previously shipped for Linux (but not Mac) but seemingly was broken. (#676)

Build system changes

• The "ci:" labels on PRs, to limit which CI targets are built, now take effect again. (#731)
• Various other fixes to the release workflow.

Full Changelog: 2025080...2025080