[Tutor] Processing rows from CSV
kent37 at tds.net
Tue Nov 17 21:50:49 CET 2009
On Tue, Nov 17, 2009 at 1:57 PM, <mhw at doctors.net.uk> wrote:
> A rather general question, I'm afraid. I have found myself writing some python code to handle some CSV data, using the csv. DictReader that generates a dict for each row with the key as the column heading and the value in the file as the item. Most operations involve code of the form: (Apologies for incorrect caps)
> For row in reader:
> If row['foo'] == 'something' :
> do this etc.
> My other question was about how I do this more efficiently: I don't want to read the whole thing into memory at once, but (AFAIK) csv.DictReader doesn't support something like readline() to deliver it one at a time.
The loop above does deliver one line worth of data at a time.
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