import subprocess proc = subprocess.Popen("python offline_check_license.py --license {0}".format('LIdgsfhlashrpo9yep8923y4u2p93wuryu5p34iyur9834y5934y8934yht9fy3ht89ur34tcu549m83tm4390tyv8934vty53m948typ5894ty7895yt934yrt89y34qht8yw35tu340tu0tyugu90t43utohto'), stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True) print(str(proc.communicate()[0]))