Since Python 3.7, PyEval_InitThreads() does nothing, since the GIL is now always created: https://vstinner.github.io/python37-gil-change.html This function is deprecated since Python 3.9 and I removed it in Python 3.13 alpha1.

Problem: my Fedora team identified that 16 projects are affected by this function removal.

• collectd
• freeradius
• gnumeric
• libesedb
• libsigrokdecode
• OpenIPMI
• openscap
• profanity
• pyliblo
• pyotherside
• python-confluent-kafka
• python-cradox
• python-gphoto2
• python-simpleaudio
• python-subvertpy
• rb_libtorrent

I propose to restore the function in Python 3.13 beta1, and remove it again in Python 3.14 alpha1.

Linked PRs

• gh-117929: Restore removed PyEval_InitThreads() function #117931