pyozig/PyOZ v0.13.9

PyOZ v0.13.9

on GitHub

What's New in v0.13.9

Fixed

• ABI3 builds crashed when freeing objects of a class with __traverse__. Such classes have Py_TPFLAGS_HAVE_GC, so their objects are allocated with a GC header in front, but the ABI3 deallocator always freed them with PyObject_Del, corrupting the heap (a segfault as soon as one was collected). It now frees with the type's tp_free (PyType_GetSlot, which PyType_FromSpec sets to PyObject_GC_Del for GC types).
• GC objects were not untracked before being torn down, in every build mode, so the collector could visit a half-destroyed object. The deallocator now calls PyObject_GC_UnTrack first. Classes with __traverse__ no longer use the __freelist__ cache, since reusing a cached object would require tracking it again.
• A failed pyoz build left a corrupt wheel in dist/. The wheel was written in place after deleting the previous one, so a failure while packaging replaced a good wheel with an invalid zip that pyoz publish would upload. It is now written to a .tmp file and renamed on success; on failure the previous wheel is untouched.
• The build log named the wrong stub file (the project name instead of the module name, e.g. zrun-py.pyi for a wheel containing zrun.pyi).

Changed

• pyoz build checks the project metadata before compiling. A missing readme or license file now fails immediately instead of after the compile, which can take minutes.
• The ABI3 documentation said the GC protocol was not part of the Stable ABI. It is, and it works in ABI3 mode (regression test with reference cycles).

Installation

Download the binary for your platform and add it to your PATH:

Source

Download PyOZ-0.13.9.tar.gz for the source code.

Quick Start

pyoz init mymodule
cd mymodule
pyoz build
pip install dist/*.whl