On 10 Aug., 17:12, "Diez B. Roggisch" <de... at nospam.web.de> wrote: > Cornelius Keller wrote: [snip] > > http://effbot.org/zone/default-values.htm > > Diez Ok thank you. I' understand now why. I still think this is very confusing, because default values don't behave like most people would expect without reading the docs. - Cornelius