os.system and quoted strings

[Sriram]

Hello svata,
It is always better to compose your string before you send it as a
command.

try printing your command string out like this :
print 'gvim dir+fileName+".txt". You'll see what the problem is.

One possible solution is to compose your command string in the
following manner:
cmd = "gvim %s%s.txt" %(dir, fileName)
and simply call os.system with cmd.
os.system(cmd)

Here is a little more detail on string format specifiers
http://docs.python.org/lib/typesseq-strings.html

HTH
Sriram

On Feb 27, 7:24 am, "svata" <svato... at gmail.com> wrote:
> Hello,
>
> as I'm new to python I've stumbled accros os.system and its not very
> well documented usage.
>
> I use Win XP Pro and Python 2.5.
>
> Here is the code snippet:
>
> --------------------------------------------------------------------------------------------------
>
> import time
> import os
>
> dir = "C:\\Documents and Settings\\somepath\\"
> fileName = time.strftime("%d%m%Y")
> os.system('gvim dir+fileName+".txt"')
>
> ---------------------------------------------------------------------------------------------------
>
> The problem is that concatenated variable dir+fileName doesn't get
> expanded as expected.
>
> Is there anything I omitted?
>
> svata