Question

printbob.py:

import sys
for arg in sys.argv:
    print arg

getbob.py

import subprocess
#printbob.py will always be in root of getbob.py
#a sample of sending commands to printbob.py is:
#printboby.py arg1 arg2 arg3   (commands are seperated by spaces)

print subprocess.Popen(['printbob.py',  'arg1 arg2 arg3 arg4']).wait()

x = raw_input('done')

I get:

  File "C:\Python27\lib\subprocess.py", line 672, in __init__
    errread, errwrite)
  File "C:\Python27\lib\subprocess.py", line 882, in _execute_child
    startupinfo)
WindowsError: [Error 193] %1 is not a valid Win32 application

What am I doing wrong here?
I just want to get the output of another python script inside of another python script.
Do I need to call cmd.exe or can I just run printbob.py and send commands to it?

Answer 1

proc = subprocess.Popen(['python', 'printbob.py',  'arg1 arg2 arg3 arg4'], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
print proc.communicate()[0]

There must be a better way of doing it though, since the script is also in Python. It’s better to find some way to leverage that than what you’re doing.