[issue44709] [3.7] Popen Control Characters in stdout affect shell session
San
report at bugs.python.org
Fri Jul 23 04:36:52 EDT 2021
San <elias.haag at web.de> added the comment:
I get your point. But I thought setting 'stdout=PIPE' should not send the stdout directly to the terminal but rather through the pipe first?!
Also what you're saying seems to contradict that this doesn't happen if I don't set the encoding and let it be a byte-stream. In that case you get the full byte-stream without any control-characters being executed.
In my opinion it is unintuitive that this is happening.
For instance if I open a file using io, that contains the same control characters like so:
f = open('cc.txt', 'r', encoding='latin_1')
Then gladly this doesn't happen and the control chars get escaped using \x1b which is what I would also expect to happen when using Popen.
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<https://bugs.python.org/issue44709>
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