Thomas Grainger <tagr...@gmail.com> added the comment:
I can confirm this happens on py3.5-3.10 ``` import mmap import pathlib import tempfile def main(): with tempfile.TemporaryDirectory() as tmp: tmp_path = pathlib.Path(tmp) path = tmp_path / "eg" path.write_bytes(b"Hello, World!") with path.open("rb") as rf: mm = mmap.mmap(rf.fileno(), 0, mmap.MAP_SHARED, mmap.PROT_READ) path.write_bytes(b"") bytes(mm) if __name__ == "__main__": main() ``` ---------- nosy: +graingert versions: +Python 3.10, Python 3.6, Python 3.7, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40720> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com