Python doesn't see the directories I create

[mr_gadget]

When I create a subfolder, python is not seeing it. Can someone please 
explain this behaviour ? I just started with python, read the tutorial over 
the weekend and am writing my very first script. So I may not be seeing 
something. Both os.path and glob.glob seem not to see a folder I created. 
Other sibling folders seem to work fine. On a whim I tried paths with \\ 
double slashes and that worked. But why should single slashes work for some 
folders and not for others ??

What I need is to match a bunch of files in a folder with 
glob.glob(C:\enhancement\rawfiles\*.bin.gz) and send them to a function that 
unzips them. But I always get []. Yes the folder does have my files, and I 
checked all permissions etc, everything looks identical to the other folders 
which python IS seeing. Same problem on my vista pc too.

Behaviour reproduced below.

C:\Enhancement>dir /ad

 Volume in drive C has no label.

 Volume Serial Number is 8056-41E7

 Directory of C:\Enhancement

08/28/2007  06:15 PM    <DIR>          .

08/28/2007  06:15 PM    <DIR>          ..

08/28/2007  06:07 PM    <DIR>          BSA Documentation

08/28/2007  05:56 PM    <DIR>          output

08/29/2007  07:08 PM    <DIR>          rawfiles

08/23/2007  04:38 PM    <DIR>          SnapCell2.3.2

08/28/2007  06:15 PM    <DIR>          test

               0 File(s)              0 bytes

               7 Dir(s)  35,703,283,712 bytes free

C:\>python -V

Python 2.5.1

C:\>python -c "import os; print os.path.exists('C:\enhancement\output')"

True

C:\>python -c "import os; print os.path.exists('C:\enhancement\rawfiles')"

False

C:\>python -c "import os; print os.path.exists('C:\\enhancement\\rawfiles')"

True

C:\>python -c "import glob; print glob.glob('C:\enhancement\rawfiles\*')"

[]

C:\>python -c "import os; print os.path.exists('C:\enhancement\test')"

False

C:\>python -c "import os; print 
os.path.exists('C:\enhancement\snapcell2.3.2')"

True