subprocess.call not working in PyCharm (linux)

Question

Here's the program:

if os.name == 'posix' and getpass.getuser() != 'root':
  from subprocess import call

  call(["sudo", sys.executable, os.path.realpath(__file__), "--root-install"])

When I run it from the terminal it works fine:

> [sudo] Password for user:

But when I run it from PyCharm the terminal just stays blank.
I have also tried setting stdin=sys.stdin, stdout=sys.stdout manually, but that did not change anything.

What am I doing wrong here?

pycharm terminal doesn't support the sudo getpass method. You probably want pexpect: stackoverflow.com/questions/18046508/… — Jean-François Fabre
– Jean-François Fabre ♦, Commented May 8, 2017 at 16:26
Thanks for the input. I thought about providing the password to sudo, but then how would I aquire said password? getpass.getpass does not seem to work in PyCharm either. — yspreen
– yspreen, Commented May 8, 2017 at 17:04
nope, getpass also needs the original terminal. You could try to detect it, and if not a normal terminal (testing for hasattr(sys.stdin,"isatty")) and if it's not a normal terminal, use some GUI like wx or tk to prompt for a password (hiding the letters) — Jean-François Fabre
– Jean-François Fabre ♦, Commented May 8, 2017 at 17:07
hasattr(sys.stdin,"isatty") is always True. Both in a normal terminal and in PyCharms. Alternatives? — yspreen
– yspreen, Commented May 8, 2017 at 20:11
oh. It's false with Pyscripter. Okay... maybe hasattr(sys.stdin,"fileno") — Jean-François Fabre
– Jean-François Fabre ♦, Commented May 8, 2017 at 20:15

Jean-François Fabre · Accepted Answer · 2017-05-08 20:22:51Z

1

PyCharm and IDEs generally don't like getpass-like inputs. Since sudo asks for the password in such a way, it's not runnable from a redirected IDE console.

Redirecting stdin from Popen won't change anything either.

Workaround: run the sudo command from a terminal. Example with xterm (sorry, I don't know much about nowadays terminals):

call(["xterm","-e","sudo", sys.executable, os.path.realpath(__file__), "--root-install"])

answered May 8, 2017 at 20:22

Jean-François Fabre♦

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3 Comments

yspreen Over a year ago

Works! Not pretty but I'm just glad there is some solution. Very clever!

Jean-François Fabre Over a year ago

glad it works! I wonder why I didn't think of that sooner... Running windows here. Other problems :)

yspreen Over a year ago

Had some windows issues too, but I know how to work around those haha, linux hacks are new for me. A standalone python program which installs its on dependencies surely is a challange for me.

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