I just get an errorlevel from the executable when I read stdout, but I can't
tell what is going on because, of course, I can't tell what Popen is
actually doing. I never see the prompt from the executable that I would
expect to see when I read stdout.
I originally had the function like this:
def setpassword(user):
password = "passworD\n"
try:
cmd = ' passwd {0}'.format(user)
pipe = Popen(p4 + cmd, shell=True, stdin=PIPE, stdout=PIPE,
stderr=PIPE, universal_newlines=True)
stdout = pipe.stdout.readline()
stderr = pipe.stdin.write(password)
time.sleep(1)
stdout = pipe.stdout.readline()
stderr = pipe.stdin.write(password)
if pipe.stdin.close != 0:
log("ERROR", "Password reset failed.\n{0}{1} generated the
following error: {2}".format(p4, cmd, stderr))
except OSError as err:
log("ERROR", "Execution failed: {0}".format(err))
but, the script just hung when I did that. I think it was stuck on the
readline, and never got anything from the process.
I didn't think that the if statement was incorrect based on examples I saw
in the docs, and the fact that it didn't complain about that part, but I'll
try the close():
Thanks,
Rusty
On Tue, Sep 15, 2009 at 4:24 PM, Rhodri James
<rho...@wildebst.demon.co.uk>wrote:
> On Wed, 16 Sep 2009 00:01:17 +0100, Russell Jackson <
> ru...@rcjacksonconsulting.com> wrote:
>
> Hi,
>> I have the following code that works fine in Python 2.x, but I can't seem
>> to
>> get it to work in Python 3 with Popen. Can you please tell me how to get
>> the
>> same functionality out of Python 3? The gist of what I doing is in the
>> setpassword function. I have tried numerous ways to get this to work, and
>> just can't figure it out, and the docs on Popen are no help whatsoever on
>> how to use the now open process. The examples completely skip over what to
>> do with the process after you open it.
>>
>
> So how did it fail?
>
> ###############################################################################
>> def setpassword(user):
>> password = "passworD\n"
>> try:
>> cmd = ' passwd {0}'.format(user)
>> pipe = Popen(p4 + cmd, shell=True, stdin=PIPE, stdout=PIPE,
>> stderr=PIPE, universal_newlines=True)
>> stderr = pipe.stdin.write(password)
>> time.sleep(1)
>> stderr = pipe.stdin.write(password)
>> if pipe.stdin.close != 0:
>>
>
> Did you perhaps mean "if pipe.stdin.close():" ?
> Does it help if you read stdout rather than sleeping for arbitrary periods?
>
> --
> Rhodri James *-* Wildebeest Herder to the Masses
> --
> http://mail.python.org/mailman/listinfo/python-list
>
--
Rusty
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