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Newbie question: Dictionary of lists

Kossmann, Bill BKossmann at dthr.ab.ca
Wed Feb 16 18:22:09 EST 2000 
Carel, 

I'll have "guaranteed-unique" account codes because we don't have synonyms
in our Chart of Accounts, and the individual account segments must be in the
same domain/format.  Good point about using a tuple as the key--as you say,
it adds a bit of insurance to the script.

Thanks for the tip, and thanks again to Remco for the
slap-to-the-side-of-the-head reminder about references.

Bill


-----Original Message-----
From: Carel Fellinger [mailto:cfelling at iae.nl]
Sent: Wednesday, February 16, 2000 14:51
To: python-list at python.org
Subject: Re: Newbie question: Dictionary of lists


Hai Bill,

Remco already pointed out how to fix your code, so I wil only add some
noice:)
Maybe you are not aware of the fact that in python dictionary keys could wel
be tuples? Quite likely that someday you will be bitten by non uniquely
conca-
tenatable account codes like 00,1 and 0,01:)

Kossmann, Bill <BKossmann at dthr.ab.ca> wrote:
...
> period names, and amounts; the dictionary's key is a concatenation of the
> account codes, and the values are 12-element lists (one for each month).
I
> want a sample dictionary entry to look like this:

> 	{'00006101071115000000': [10, 20, 30 ... 120]}

as bit-prevention you could change the key you use from

> # Key is our cost centre code
>    dictionaryKey = histRcd[0]+histRcd[1]+histRcd[2]+histRcd[3]

to
    dictionaryKey = (histRcd[0], histRcd[1], histRcd[2], histRcd[3])

-- 
groetjes, carel
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