Hi: I've gotten through most of the "9. Classes" section of the tutorial. I can deal with the syntax. I understand the gist of what it does enough that I can play with it. But am still a long way from seeing how I can use this OOP stuff.
But I have one idea. Not that the functional approach isn't workable, but I have a situation where I need to test if all the characters in a string are in the set of hexadecimal digits. So I wrote: ------------------------------------------ from string import hexdigits def ishex(word): for d in word: if d not in hexdigits: return(False) else return(True) ------------------------------------------ Then I can do this to check if a string is safe to pass to the int() function without raising an exception: if ishex(string): value = int(string, 16) But can I create a class which inherits the attributes of the string class, then add a method to it called ishex()? Then I can do: if string.ishex(): value = int(string, 16) The thing is, it doesn't appear that I can get my hands on the base class definition/name for the string type to be able to do: --------------------------------------- class EnhancedString(BaseStringType): def ishex(self): for d in word: if d not in hexdigits: return(False) else return(True) --------------------------------------- Thanks. -- _____________________ Christopher R. Carlen [EMAIL PROTECTED] SuSE 9.1 Linux 2.6.5 -- http://mail.python.org/mailman/listinfo/python-list