Peter Kleiweg schreef: > Is this a bug I should report? Is it a bug in Python, or in tk? I already found a bug report about this on SourceForge: [ 807871 ] tkMessageBox.askyesno wrong result -- Peter Kleiweg L:NL,af,da,de,en,ia,nds,no,sv,(fr,it) S:NL,de,en,(da,ia) info: http://www.let.rug.nl/~kleiweg/ls.html