Python creates "locked" temp dir

[utabintarbo]

I am using tempfile.mkdtemp() to create a working directory on a
remote *nix system through a Samba share. When I use this on a Windows
box, it works, and I have full access to the created dir. When used on
a Linux box (through the same Samba share), the created directory
shows as "locked", and I am unable to access. Obviously, I need
access. Any clues?

Background/environment:
Python 2.6.5 on Red Hat Enterprise Linux 5.3

TIA