sub-classing the types in the builtin module datetime

[Colin J. Williams]

I wish to sub-class (if that's the right word) datetime and to use a 
different signature for the constructor.

The second part has gone smoothly, but it is difficult to access the 
type's methods from the sub-class instance.

I'm beginning to wonder whether it might might be simpler to write my 
own Date class.

Does anyone have any comments please?

Colin W.