os.system and quoted strings

[svata]

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:

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import time
import os

dir = "C:\\Documents and Settings\\somepath\\"
fileName = time.strftime("%d%m%Y")
os.system('gvim dir+fileName+".txt"')

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The problem is that concatenated variable dir+fileName doesn't get
expanded as expected.

Is there anything I omitted?

svata