[Tutor] system call

Alan Gauld alan.gauld at btinternet.com
Sun Oct 28 01:09:35 CEST 2007

"Eric Walker" <sli1que at yahoo.com> wrote 

> I am trying to run a timing script but I need the python program 
> to stop and wait for the executable to finish. Does anyone have 
> any examples of doing this?

There are several ways to do it depending on what exactly 
you are trying to do. We need a bit more detail.

If the "timing script" is an externalo program then if you run 
it using os.system() your code will wait(ie block) until system() 
returms - which is when the program executed exits.

However os.system() is a bit of a blunt tool and 
often not the best solution. If we know what the 
real problem is we might do better.

Alan Gauld
Author of the Learn to Program web site

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