[issue46193] Using a dictionary for open files.

[Eryk Sun]

Eryk Sun <eryksun at 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.

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nosy: +eryksun

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue46193>
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