Complex Nested Dictionaries
Edward C. Jones
edcjones at erols.com
Sun Feb 22 00:19:32 CET 2004
T. Earle wrote:
> I really appreciate your help and code. It really helps me to understand
> the underlying solution to my problem. I have another question though,
> what's the best way to test if the headline already exists? If it does not,
> I need to create it along with the required associated data; however, if it
> already exists, I need to test to ensure I'm not already adding data that's
> already there (e.g., time and/or state already exists). Basically, I
> envision, if the state already exists all I need to do is add the new zone.
> I probably should check to make sure the zone doesn't already exists too.
> Any help would be greatly appreciated. I believe it would be similiar to
> what Russell mentioned in his previous responce:
> "if list a[key] exists, then append; otherwise, create a new list"
> Would it be possible to supply a code snippet of this logic to get me
> started? What are state and time? Is it possible to use the "key" keyword
> on these variables to test for their existence? I apologize for my lack of
> knowledge in this particular realm of programming in Python. Nested
> dictionaries have always given me trouble.
> T. Earle
Check out "MultiDict.py" at "http://members.tripod.com/~edcjones/".
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