passing command line arguments to executable

Bror Johansson brjohan at
Tue Apr 6 16:15:23 EDT 2010

On 2010-04-03 18:09, mcanjo wrote:
> I have an executable (I don't have access to the source code) that
> processes some data. I double click on the icon and a Command prompt
> window pops up. The program asks me for the input file, I hit enter,
> and then it asks me for and output filename, I hit enter a second time
> and it goes off and does its thing and when it is finished running the
> Command Prompt goes away and I have my new output file in the same
> directory as my executable and input file. I would like to be able to
> batch process a group of files. I thought about using "os.spawnv()" in
> a loop and at each iteration of the loop passing in the file in and
> out names but that didn't work. Does anyone have any ideas?

It's been quite a while since I had to solve problems like the one you 
have. Sometimes I used a Python implementation of 'expect' successfully.

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