WANG Cong: > 4) Also, this will _somewhat_ violate the OOP princples, in OOP, > this is and should be implemented by inherence.
Most object oriented programming languages starting with Smalltalk have allowed adding attributes (addInstVarName) to classes at runtime. Low level OOPLs like C++ and Delphi did not implement this for efficiency reasons. Neil -- http://mail.python.org/mailman/listinfo/python-list
