Set timeout and kill external windows program

[Chico Jayanthan]

Hi, 

I call an external windows program (.exe) from a
python script. Something like os.system('test.exe'). I
want to set a timeout for the external windows program
to return. If no results are produced by the external
windows program (test.ext) within this timeout limit,
I want to terminate the external windows program and
continue with the python script. 

How do I set the timeout and terminiate the external
windows program from within the Python script? 

Thanks. 
Suganthan.


       
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