writting classes to file

[Curtis Jensen]

I have several data classes that just contain data; no functions.  I
also have some dictionaries.  I want to write them to one file in a
database form.  Shelve doesn't seem to let me do operations on classes. 
Pickle doesn't let me save several classes to one file.  I can't seem to
shelve pickled objects.  So, what is the best way to go about this. 
Thanks.

-- 
Curtis Jensen
cjensen at bioeng.ucsd.edu
http://www-bioeng.ucsd.edu/~cjensen/
FAX (425) 740-1451