On Tue, 30 Nov 2004 15:20:19 +0100, Stefan Behnel <[EMAIL PROTECTED]> wrote:
>
>
>shark schrieb:
>> row = {"fname" : "Frank", "lname" : "Jones", "city" : "Hoboken", "state" :
>> "Alaska"}
>> cols = ("city", "state")
>>
>> Is there a best-practices way to ask for an object containing only the keys
>> named in cols out of row? In other words, to get this:
>> {"city" : "Hoboken", "state" : "Alaska"}
>
>Untested:
>
>dict( (key,value) for (key,value) in row.iteritems() if key in cols )
If there's an overall why for doing it at all, why not just iterate through
keys of interest? I.e., (untested)
dict( (key, row[key]) for key in cols )
>
>Works in Py2.4
>
>Stefan
Regards,
Bengt Richter
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