Am 19.10.2010, 10:10 Uhr, schrieb Diez B. Roggisch <de...@web.de>:
amfr...@web.de writes:
Hi,
i have a program that have to execute linux commands. I do it like this:
retcode = Popen(["xterm", "-e", command],stdin=PIPE, stdout=PIPE,
stderr=PIPE)
I have to use xterm because some commands need further input from the
user after they are executed.
But when i use xterm i can't get the returncode or the errormessage
from a command:
print retcode.returncode # always 0
print retcode.stderr.read() # always empty
print retcode.stdout.read() # always empty
The same code works without xterm. As i understand it, if i use xterm
the retcode refers to the xterm window (process).
But is there a way i can get the returncode and errormessage of the
command i sent to xterm ?
You could create a python-wrapper-script that will store the result and
streams in files. Like this
command = ["callwrapper", "--dest-key=<random_string>",
"the_real_command"]
Popen(["xterm", "-e", command])
The dest-key will be used to create files named <random_string>.status,
<random_string>.stdout, <random_string>.stderr so that you can read from
them afterwards.
Diez
Thanks for the answer,
but i really don't know how to do it - i never wrote a wrapper, how do i
get the status, stdout and stderr ?
Can you elaborate that further or do you maybe have a link that could help
me ?
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