Is the following intuitively feasible in Python: I have an array (I come from C) of identical objects, called sections. These sections have some feature, say a length, measured in mm, which is calculated by a method A_length of the instantiation of the Section's class. Only, two elements in the array (or list ?) have a length that must be calculated according to a totally different procedure, a different function or method. After calculation of ALL the lengths, they must be added together and output. The calculation procedure screams for a FOR or a WHILE loop allong the list of sections, only those two sections mentioned make life difficult.
I was thinking along the line of building a class Section, instantiate a list of objects of this class, and then replace 2 of the elements of the list by instantiations of the special class... Or maybe replace only the method in question by the special method... It would be neat, if I could just walk the FOR loop, constructing the list and calculate the total length in one go... Concretely, the situation is a Plone site that passes user "section" data to a Python / C server-side to do calculations on the section data and return the result over the web. -- http://mail.python.org/mailman/listinfo/python-list
