If the .pyc is created in the filesystem that means python has compiled. And that answers the question in a real sense. -- View this message in context: http://plone.293351.n2.nabble.com/new-hotfix-for-an-old-2-5-windows-install-tp6005940p6009948.html Sent from the Installation, Setup, Upgrades mailing list archive at Nabble.com.