An example in python 2 on how you can run a shell command from within your python program. Further examples can be found in the python 2 documentary on subprocess.
# -*- coding: utf-8 -*-
#
# utils.py
#
###############################################################################
# imports
import subprocess
from threading import Lock
###############################################################################
# shell command execution
def run_command(command):
# run command (can be an array (for parameters))
p = subprocess.Popen(command, shell=True, \
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
# capture output and error
(output, err) = p.communicate()
# wait for command to end
# TODO: really long running?
status = p.wait()
# decode output from byte string
if output is not None:
output = output.decode('utf-8')
if err is not None:
err = err.decode('utf-8')
# return stdout, stderr, status code
return (output, err, status)
def execute(command):
debug('run command:', command)
out, err, status = run_command(command)
debug('-> exit status:', status)
debug('output:', out)
debug('error:', err)
###############################################################################
# logging
log_lock = Lock()
def log(level, msg, *args, **kwargs):
log_lock.acquire(True)
print '[' + level + ']', msg,
for arg in args:
print arg,
for k, w in kwargs:
print '[', k, '=', w, ']',
print
log_lock.release()
def info(msg, *args, **kwargs):
log('INFO ', msg, *args, **kwargs)
def verbose(msg, *args, **kwargs):
log('VERBOSE', msg, *args, **kwargs)
def debug(msg, *args, **kwargs):
log('DEBUG ', msg, *args, **kwargs)
def error(msg, *args, **kwargs):
log('ERROR ', msg, *args, **kwargs)
def warning(msg, *args, **kwargs):
log('WARNING', msg, *args, **kwargs)#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# program.py
#
# TODO: in the first line "/usr/bin/python" should point to your python binary
# then you can execute the file with "./program.py"
###############################################################################
# imports
from utils import info, debug, error, \
execute, run_command
###############################################################################
# functions
def main():
# build your command
command = 'ls -l'
# run the command
execute(command) # or: run_command(command) if you don't want the logging
###############################################################################
# Entry-Point
if __name__ == '__main__':
main()