mass editing for keys in a dictionary

[Amit Khemka]

On 9/14/07, james_027 <cai.haibin at gmail.com> wrote:
> hi,
>
> How could I transform something like this
>
> dict_1 = {'customer_id':1, 'item_id':3, amount:100}
>
> into
>
> dict_2 = {'customer':1, 'item':3, amount:100}

A one liner would be :

>>> dict_2 = dict([(k.split('_')[0], v) for (k,v) in dict_1.iteritems()])

It would split the keys by '_' and use first part of split as the new key !

You must be aware be careful in cases where there are keys like
'customer_1' , 'customer_2', ...

Cheers,


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Amit Khemka
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