Hi Amaury, On Mon, Jun 6, 2011 at 3:55 PM, Amaury Forgeot d'Arc <amauryfa at gmail.com> wrote: > Also ensure that the warning message points to the *caller* of os.tempnam(). > (I don't remember whether applevel functions are visible in the Traceback) They aren't; sys._getframe() ignores them completely. Armin.