Chris,
Hold on a moment, how often do you really do this kind of thing with "might be one of them or a sequence"?
Is it really that important that I give a more real-life example, or can't you just get the problem from a ad-hoc example?
I could replace the variable names with spam, ham and eggs, if you wish. -- https://mail.python.org/mailman/listinfo/python-list
