OS.SYSTEM ERROR !!!

Blubaugh, David A. dblubaugh at belcan.com
Tue Sep 30 20:19:59 CEST 2008


Yes,

I new it was a directory issue.  I am new to Python.  

Thank You


David Blubaugh

-----Original Message-----
From: Martin Walsh [mailto:mwalsh at mwalsh.org] 
Sent: Tuesday, September 30, 2008 1:42 PM
To: python-list at python.org
Subject: Re: OS.SYSTEM ERROR !!!

Blubaugh, David A. wrote:
> To All,
> 
> I have been attempting to execute the following program within the 
> Python environment:
<snip>
> 
> However, when I would try to execute the following lines of source 
> code within a python script file:
> 
> import os
> 
> os.system(r"C:\myprogramfolder\run\Myprogram.exe 1 1 acc 0")
> 
<snip>
> 
> I believe I may be missing something here that prevents the executable

> file working within python from utilizing this (.dat).  The printed 
> final error is the following:
> 
> ERROR opening inputs/io/control.dat
> 
> Does anyone know what that could be ??

Based on your description, it seems pretty obvious (and easy to confirm)
that Myprogram.exe needs to be run from its containing directory
("C:\myprogramfolder\run"). Try something like this...

import os
pwd = os.getcwd()
os.chdir('c:/myprogramfolder/run')
os.system("Myprogram.exe 1 1 acc 0")
os.chdir(pwd)

HTH,
Marty


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