Where does shelve look for unshelved class definitions?

[Stuart Hungerford]

Hi all,

I have a python module foo.py which contains:

   class A(object): ...
   class B(object): ...

As well as a class that uses shelve (which in turn is
using dumbdbm):

   class foo(object): ...
      // uses a shelve internally

The methods of foo shelve and restore A and B instances
*but* shelve seems to be looking in the wrong places for
the definitions of A and B when they're "unshelved",
giving the error:

   AttributeError: 'module' object has no attribute 'A'

How can I persuade shelve to look in other namespaces for
A and B?

Any advice much appreciated,


Stu