How to derive a class from md5?

[Paul Rubin]

Josef Wolf <jw at raven.inka.de> writes:
> dir(md5) shows that md5 don't have an __init__() method so I tried to use
> its new(), with the same result.  What am I doing wrong here?

md5 isn't set up to be subclassed like that.  Better make a new
md5file class and have an md5 instance inside your md5file instances.
You can make a __getattr__ method to forward operations on md5file
instances to the internal md5 object.  There's probably also some 
metaclass tricks you could use to make that happen automagically.