Leonardo Francalanci added the comment:
That works!
But when I said "also with close_fds=True", I meant that I tried WITHOUT
overriding stdin, stdout, and stderr AND setting close_fds=True, but it didn't
work. What worked was not overriding stdin/out/err and adding
os.set_inheritabl
Leonardo Francalanci added the comment:
can I at least change the call to:
subprocess.run('cmd /S /C waitfor g /t 200', shell=False, timeout=4)
in any way to avoid the problem?
I tried with
stdin=subprocess.DEVNULL,stdout=subprocess.DEVNULL,stderr=subprocess.DEVNULL;
also with close_fds=True
Leonardo Francalanci added the comment:
I'm really sorry, you are 100% correct: it blocks on the pipe (my tests killed
the process tree before reading from the pipes).
Still, I think there should be a way to actually read the output also in this
case... works for me when I kill the whole
Leonardo Francalanci added the comment:
I have a workaround, and I guess this means there's a bug in the current
implementation of stdout/stderr=subprocess.PIPE; if I open my own pipes instead
of using subprocess.PIPE everything seems to work (provided I close the pipe
before reading from
Leonardo Francalanci added the comment:
(forgot: Issue 26534 is about shell=True, I use shell=False, right?)
--
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Leonardo Francalanci added the comment:
thank you for your replies!
I used waitfor because it's the simplest and shortest way to have reproducible
code. The issue I'm having is obviously not with waitfor, but with another exe,
but this doesn't change the fact that I need a way to exit as soon
Leonardo Francalanci added the comment:
The called "C:\\Program Files (x86)\\Anaconda3\\Python.exe" process exits after
4 seconds. The reason why it ends shouldn't matter, right? I expect that a call
to communicate should exit as soon as the called process is not running
anymore. I
Changes by Leonardo Francalanci <ultimoam...@gmail.com>:
--
components: +Interpreter Core
type: -> behavior
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New submission from Leonardo Francalanci:
the script below (a python process is called, which calls a waitfor cmd with a
timeout of 4 seconds) is supposed to end after 4 seconds. But instead
proc.communicate stops after the 20 seconds timeout.
Everything works 100% ok if I remove the stdin
