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Using python with the Popen subprocess

I am trying to use subprocesses with python. Here is my task:

  • Run api through the command line (this is no different from running any argument on the command line)
  • Confirm my API has appeared. The easiest way to do this is to poll the standard.
  • Run the command against the API. A command line will appear when I can run a new command
  • Verify that the command is completed by polling standard output (API does not support logging)

What I have tried so far:
1. I am stuck here using Popen. I understand that if I use subprocess.call("put command here")it works. I wanted to try using something similar to:

import subprocess

def run_command(command):
  p = subprocess.Popen(command, shell=True,
                       stdout=subprocess.PIPE,
                       stderr=subprocess.STDOUT)

where I use run_command("insert command here"), but it does nothing.

2. , : Python , 1. , .

+5
2

- , , Popen- .

def run_command(command):
    p = subprocess.Popen(command, shell=True,
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT)
    return p.communicate()
+7

Pexpect, , .

, scp :

child = pexpect.spawn('scp foo myname@host.example.com:.')
child.expect ('Password:')
child.sendline (mypassword)

. Pexpect-u Python 3.

+6

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