Add Python 3.10 support (!61) · Merge requests · mercurial / mercurial-devel · GitLab

Victor Stinner requested to merge topic/default/python310 into branch/default Dec 14, 2020

Replace "Py_TYPE(obj) = type;" with "Py_SET_TYPE(obj, type);"
Add pythoncapi_compat.h header file to get Py_SET_TYPE() on Python 2.7-3.8. Header file added to mercurial/ and contrib/python-zstandard/zstd/common/.

In Python 3.10, Py_TYPE(obj) must not longer be used as an l-value.

pythoncapi_compat.h comes from: https://github.com/pythoncapi/pythoncapi_compat