[Tutor] perplexing error with shelve

[bob gailer]

Orest Kozyar wrote:
> I have a program which queries an online database (Medline) for XML data.
> It caches all data using shelve to avoid hitting the database too many
> times.  For some reason, I keep getting a RuntimeError: maximum recursion
> depth exceeded when attempting to add a certain record.  
Please post the entire traceback. Else we can't (or won't try to) help.