Eryk Sun <eryk...@gmail.com> added the comment:
Every time open(r"test.txt", "w") is called, the existing "test.txt" file gets overwritten in the filesystem as an empty file. For each iteration, setdefault() returns a reference to the first file object, which advances its file pointer with each fh.write("\nHello\n") call. For the last write, the file pointer is at offset 693 (i.e. 7 * 99), and the OS first writes null bytes up to the file pointer. This is normal behavior, not a bug. ---------- nosy: +eryksun _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46193> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com