Bug 3.11.x behavioral, open file buffers not flushed til file closed.
Frank B
nospam_2023 at efbe.prima.de
Sun Mar 5 11:37:38 EST 2023
Am 05.03.23 um 15:35 schrieb aapost:
> I have run in to this a few times and finally reproduced it. Whether it
> is as expected I am not sure since it is slightly on the user, but I can
> think of scenarios where this would be undesirable behavior.. This
> occurs on 3.11.1 and 3.11.2 using debian 12 testing, in case the
> reasoning lingers somewhere else.
>
> If a file is still open, even if all the operations on the file have
> ceased for a time, the tail of the written operation data does not get
> flushed to the file until close is issued and the file closes cleanly.
>
> 2 methods to recreate - 1st run from interpreter directly:
>
> f = open("abc", "w")
> for i in range(50000):
> f.write(str(i) + "\n")
use
with open("abc", "w") as f:
for i in range(50000):
f.write(str(i) + "\n")
and all is well
Frank
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