bpo-38031: Fix a possible assertion failure in _io.FileIO()#15688

iritkatriel merged 12 commits into

python:mainpython/cpython:mainfrom

ZackerySpytz:bpo-38031-_io-FileIO-opener-crashZackerySpytz/cpython:bpo-38031-_io-FileIO-opener-crashCopy head branch name to clipboard