os.system(r"ls") prints to screen??

[Steve Holden]

Xah Lee wrote:
> does anyone know why the folllowing prints to the screen?
> 
> # python
> import os
> os.system(r"ls")
> 
>  Xah
>  xah at xahlee.org
> ∑ http://xahlee.org/
> 
It only prints to the screen when standard output of the invoking 
process is the screen. The sub-process forked by os.system inherits 
stdin stdout and stderr from the invoking process.

This is all pretty basic stuff. Perhaps you should stop your verbal 
assault on the computer science community and start to learn the 
principles of what you are doing.

regards
  Steve
-- 
Steve Holden       +44 150 684 7255  +1 800 494 3119
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