On Aug 25, 2:09 pm, Ken Starks <[EMAIL PROTECTED]> wrote: > Ken Starks wrote: > > I have a class with an attribute called 'gridsize' and I want > > a derived class to force and keep it at 0.8 (representing 8mm). > > > Is this a correct, or the most pythonic approach? > > > #################### > > > def __getattr__(self,attrname): > > if attrname == 'gridsize': > > return 0.8 > > > def __setattr__(self,attrname,value): > > if attrname == 'gridsize': > > pass > > else: > > self.__dict__[attrname]=value > > > ##################### > > > Cheers, > > Ken. > > Perhaps I should mention the alternative I had in mind: > > ################### > > class xyz: > def __init__(self): > self.__dict__['a'] = 123 > self.b=456 > > def __setattr__(self,attrname,value): > if attrname == 'a': > pass > else: > self.__dict__[attrname]=value > > # __getattr__() not redefined. > > ############################
This is just me, but I don't think that Python is the right language for your program. In Python it's extra easy to get around that obstacle. Python is more about freedom and discipline. -- http://mail.python.org/mailman/listinfo/python-list
