New submission from 施文峰 <ke26537...@gmail.com>: happen at io's reading & updating(r+) mode after read, file object's postion stay in last if you remove whole content ( truncate(0) ), postion wil not back to 0 still stay in the last then you start writing from last position(not 0) that's why problem happen
test case can check here https://github.com/841020/open_source ---------- components: IO files: Screenshot from 2020-12-25 10-46-42.png hgrepos: 396 messages: 383710 nosy: ke265379ke priority: normal severity: normal status: open title: [issue] io's r+ mode truncate(0) type: enhancement versions: Python 3.6, Python 3.7, Python 3.8, Python 3.9 Added file: https://bugs.python.org/file49697/Screenshot from 2020-12-25 10-46-42.png _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42733> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com