Run program from within Python

[frankrentef]

Greetings all...

Newbie to Python... need help with opening a file from within
Python... see the following code.


import popen2
stdout, stdin = popen2.popen2(' c:\test\OpenPro gram.exe 1 1')
keygen = stdout.read()
print "The keygen value is: %s" % keygen


from the command line if I execute "OpenProgram.ex e 1 1" a number is
returned. ("1 1" are required to return the value needed.) Ultimately
I want to take that number and apply it to another script, but the
program is not running.

Suggestions?


NEWBIE to Python..

[Mike Driscoll]

Re: Run program from within Python

On Aug 6, 2:42 pm, frankrentef <frankren...@ya hoo.comwrote:

Greetings all...
>
Newbie to Python... need help with opening a file from within
Python... see the following code.
>
import popen2
stdout, stdin = popen2.popen2(' c:\test\OpenPro gram.exe 1 1')
keygen = stdout.read()
print "The keygen value is: %s" % keygen
>
from the command line if I execute "OpenProgram.ex e 1 1" a number is
returned.  ("1 1" are required to return the value needed.) Ultimately
I want to take that number and apply it to another script, but the
program is not running.
>
Suggestions?
>
NEWBIE to Python..

If you're using Python 2.4+, popen2 is deprecated. I recommend reading
up on the subprocess module instead. Here's a couple links:

http://blog.doughellmann.com/2007/07/pymotw-subprocess.html

http://docs.python.org/lib/module-subprocess.html

The first one also explains how to communicate with a process you
opened.

Mike

[giltay@gmail.com]

Re: Run program from within Python

On Aug 6, 3:42 pm, frankrentef <frankren...@ya hoo.comwrote:

stdout, stdin = popen2.popen2(' c:\test\OpenPro gram.exe 1 1')

What Mike said about subprocess.

Also, in regular Python strings, \t means a tab character. You need
to replace \ with \\ in the programme path ('c:\\test\\Ope nProgram.exe
1 1') or use a raw string (r'c:\test\Open Program.exe 1 1'). (The r
informs the Python parser that backslashes are to be used veratim, not
as special code. If you're using Windows, raw strings make for fewer
headaches when dealing with file paths.)

Geoff G-T

[frankrentef]

Re: Run program from within Python

THNX for the links... lotta reading for the newbie!