Hi all! i'ld like to execute via Python this simple bash command: sudo las
las is intended to be a typo for "ls" the point is that i want to see in the terminal the stderr message (that is "sorry, try again" if i insert the wrong password or "sudo: las: command not found" otherwise) i can simply do it with subprocess.POpen() or subprocess.Call() but as far as i know i have two choice: 1) s = subprocess.Popen('sudo las', shell=True, stderr=subprocess.PIPE) in this way i catch the stderr messages BUT they are not "printed" in the terminal 2) s = subprocess.Popen('sudo las', shell=True, stderr=none) in this way i "print" the message in the terminal but i can retrieve they (the error messages) when the command is executed it's important for me to know if the user have inserted the wrong password or i've tryied to execute a wrong/unsupported command (for example yum install in a ubuntu environment, or a typo like "las") if i use stderr=subprocess.PIPE and the user insert a wrong password, he'll get a second request of insert password without the reason for doing it (because the error message isn't printed on the terminal). This is not a big problem, he will understand he haven't inserted the right password, and if he miss the password 3 times i'll pop-up a gtk alert windows to inform him of the problem. Still, it's not good to don't give feedback of the error to the user, so i'ld like to print the stderr on terminal AND get it after the command terminate to check the problem occurred (exit status is not enough). Is there a way to accomplish this? As usual sorry for my bad english MedeoTL -- http://mail.python.org/mailman/listinfo/python-list