Embedded For Loop With No Data
steve at REMOVE.THIS.cybersource.com.au
Fri Jul 6 00:50:36 CEST 2007
On Thu, 05 Jul 2007 22:03:59 +0000, rshepard wrote:
> Haven't found an answer to my question in the books and other docs I have
> available, so I am asking here.
> I have three lists of data retrieved from database tables. I want to cycle
> through all three lists using nested FOR loops. What is the behavior if
> there are no data in the list used in the middle loop?
Why don't you try it and see for yourself?
types = ["Type A", "Type B", "Type C"]
subtypes = 
details = [1, 2, 3]
> for a in types:
> for b in subtypes:
> for c in details:
> do some processing
> Not every item in the 'types' list will have an associated 'subtype'. Does
> the index ignore that loop and drop to the one nested beneath it?
Be sure to write back and let us know what you discover.
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