Odd problem running command-line python scripts (win2k)

[Brian Kelley]

Here is a test script
--- test_os.py ---
import os
print os.system("DIR > t")

F:\> python test_os.py
0
F:\>

t has the correct listing in it
F:\> del t
F:\> test_os.py
1
F:\>

t doesn't exist

Does anybody have a clue what is going on here?  Apparently, I can't get 
any system call to work when the program is not explicitly called by python.

I'm using the default python 2.2.1 installation on windows2000.

Thanks.