Python doesn't see the directories I create

Diez B. Roggisch deets at nospam.web.de
Thu Aug 30 10:54:09 CEST 2007


mr_gadget schrieb:
> 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')"

I'm pretty sure it's a missing backslash escape thingy. Either use \\ 
for a backslash in paths, or just the forward slash, it works as well.

And case-sensitivity might be an issue as well.
Diez



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