[Tutor] os.system
Steven D'Aprano
steve at pearwood.info
Sat Dec 18 02:02:50 CET 2010
jtl999 wrote:
> I want to pass a variable to os.system which is dir
>>>> dir=raw_input ("Dir Please ")
> Dir Please /
> ok dir = /
>>>> os.system ("ls" + dir)
> sh: ls/: No such file or directory
> 32512
>
> any advice
Yes -- learn to read the error messages you get. The error you get is a
shell error, not a Python error. It is *exactly* the same error you
would get if you do this by hand:
sh-3.2$ ls/
sh: ls/: No such file or directory
This tells you that the shell can't find a file called "ls/". No
surprises there -- you want "ls /". So you need to include a space in
the shell command that you pass to os.system.
--
Steven
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