Diez, You are quite right on using module.name when importing module objects. This happened to be the way I ran my initial successful tests. Later I modified things by using 'import * from algotest' and my modifications stopped from coming through.
In my case reload comes in very handy. I can see your point about testscripts in software development. However this particular project is in a stage where code writing became now somewhat insignificant relative to mathematical algorithm development and simultion. Very quick turnaroud is of prime importance. A testscript wouldn't test anything without going through a complete setup cycle involving several stage chains. So online localized modification comes in very handy (of course you could always goof up in syntax in a modifying a statement - too bad!) Diez, thank you very much! -- http://mail.python.org/mailman/listinfo/python-list