walterbyrd <[EMAIL PROTECTED]> writes: > Suppose you are sequentially processing a list with a routine that > expects every item to be of a certain type. Something in the list > that doesn't conform to the type could give you unexpected results, > maybe crash your application.
A routine that demands its inputs to be of a certain *type*, rather than requiring that the implement the required *behaviour*, breaks polymorphism. Polymorphism is considered valuable in Python; search for any of "polymorphism", "duck typing" and "easier to ask forgiveness than permission". -- \ "Intellectual property is to the 21st century what the slave | `\ trade was to the 16th." -- David Mertz | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
