On Wed, Dec 15, 2021 at 08:19:16PM -0800, Kushal Kumaran wrote: > On Wed, Dec 15 2021 at 09:38:48 PM, Jason <elect...@emypeople.net> wrote: > > Hello, > > > > How can I find out the exit code of a process when using the > > subprocess module? I am passing an email message to a shell script and > > I need to know whether the shell script threw an error. > > > > Here is my code: > > p = Popen(cmd, stdout=None, stdin=PIPE, stderr=None) > > p.communicate(input=msg) > > > > I tried something like this: > > e_stat = p.communicate(input=msg) > > > > but the value of e_stat is always '(None, None)' > > > > You want to look at p.returncode after communicate returns: > https://docs.python.org/3/library/subprocess.html#subprocess.Popen.returncode > > https://docs.python.org/3/library/subprocess.html#subprocess.Popen.communicate > returns a tuple with the stdout and stderr contents.
Thank you, that is the info I needed! -- Jason Rissler -- https://mail.python.org/mailman/listinfo/python-list
