harold fellermann wrote: >>I don't know if I should be inheriting file or just using a file >>object. >> How would I determine which one would be more appropriate? > > > Inheritance is often refered to as an IS relation, whereas using an > attribute > is a HAS relation. > > If you inherit from file, all operations for files should be valif for > your > class also. Usually the file-operations would be directly inherited and > not > overwritten. > > However, if you don't want to expose all file functionalities, a HAS > relation > is more appropriate. if you plan to use your class as a file handle, > e.g. for > formatting output in a special way, I woould prefer to make the file an > attribute:
> If you would tell as your use case, it would be easier to give you an > advice. That is an excellent explanation and the example is similar to what I want to do. I have a file I want to look through and change if needed. I think I will follow you suggestion and not inherit from the file object. Thanks, Jeremy -- http://mail.python.org/mailman/listinfo/python-list
