os.popen--which one to use?

Kevin Walzer kw at codebykevin.com
Tue Apr 3 20:53:53 CEST 2007

I'm confused by the number of variations on "popen" that Python offers.

I'm using os.popen in my programs without difficulty. Is this wrong? 
Should I be using popen 2, popen3, etc.? I'm not clear on what the 
advantages of popen2, 3 etc. are: they seem a lot more complicated.

Kevin Walzer
Code by Kevin

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