Eric Brunel is right in that a Listbox won't provide any builtin help for this kind of things.
Suppose you can afford a width of 10 chars. Suppose your lines are stored in the variable Lines - a sequence. Suppose you use a font with fixed width (the width occupied by "i" is the same like for "m"). lBox = Listbox(parent, width=10) for i in Lines: if len(i) > 10: lBox.insert(END, i[-10:]) else: lBox.insert(END, ('%10s' % i)) For more on string formatting, check chapter 2.3.6.2 in Python's documentation. Good luck! Sorin Schwimmer __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- http://mail.python.org/mailman/listinfo/python-list