[Python-Dev] os.path.exists() / os.path.isdir() inconsistency when dealing with gvfs directories

Oleg Broytman phd at phdru.name
Wed Jun 27 09:32:52 CEST 2012


On Wed, Jun 27, 2012 at 01:49:34AM +0200, Giampaolo Rodol? <g.rodola at gmail.com> wrote:
> I've just noticed a strange behavior when dealing with gvfs filesystems:
> 
> giampaolo at ubuntu:~$ python -c "import os;
> print(os.path.exists('/home/giampaolo/.gvfs'))"
> True
> giampaolo at ubuntu:~$ sudo su
> root at ubuntu:~# python -c "import os;
> print(os.path.exists('/home/giampaolo/.gvfs'))"
> False
> 
> This is due to os.stat() which internally fails with PermissionError (EACCES).

   BTW, the same is true for FUSE when an FS has been mounted without
something like "-o allow_other" or "-o allow_root":

root at nb # ls /home/phd/mnt/net
ls: cannot access /home/phd/mnt/net: Permission denied

Oleg.
-- 
     Oleg Broytman            http://phdru.name/            phd at phdru.name
           Programmers don't die, they just GOSUB without RETURN.


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