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Groups > comp.lang.python > #54650

What's the best way to extract 2 values from a CSV file from each row systematically?

Newsgroups comp.lang.python
Date 2013-09-23 10:10 -0700
Message-ID <fbfc360b-0553-4203-b89a-80b4c4036aec@googlegroups.com> (permalink)
Subject What's the best way to extract 2 values from a CSV file from each row systematically?
From quarantinemiles@gmail.com

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Hey guys,

I'm a little new to Python, and am still learning!

I'm test building a web scraper that extracts prices from a website, based on two values I want to extract from a CSV file. The CSV has at least 1000 rows, an example:

0,0,KGD,0,DME,0,,0,0

The values I want to extract are KGD and DME (columns 3 and 5).

Each row in the CSV file contains values in columns 3 and 5 that I'd like to extract. What's the best way to extract these data, so I can insert them as inputs in two different fields in a form? A list, dictionary, or MySQL? I try not to do anything with MySQL as I'm not familiar with it at all.

I'm thinking of dictionary because at least I can make it work as a key/value pair (for columns 3 and 5), but a dictionary is unordered. I'd like to automatically go through each row in the CSV file from beginning to end to extract the two values in columns 3 and 5 and insert them into fields in a form.

I'd really appreciate any suggestions or help, thanks in advance!


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Thread

What's the best way to extract 2 values from a CSV file from each row systematically? quarantinemiles@gmail.com - 2013-09-23 10:10 -0700
  Re: What's the best way to extract 2 values from a CSV file from each row systematically? Neil Cerutti <neilc@norwich.edu> - 2013-09-23 17:20 +0000
  Re: What's the best way to extract 2 values from a CSV file from each row systematically? Joel Goldstick <joel.goldstick@gmail.com> - 2013-09-23 13:25 -0400
  Re: What's the best way to extract 2 values from a CSV file from each row systematically? Tim Chase <python.list@tim.thechases.com> - 2013-09-23 12:47 -0500
    Re: What's the best way to extract 2 values from a CSV file from each row systematically? Alex Lee <quarantinemiles@gmail.com> - 2013-09-24 07:04 -0700
      Re: What's the best way to extract 2 values from a CSV file from each row systematically? Roland Mueller <roland.em0001@googlemail.com> - 2013-09-27 12:22 +0300
  Re: What's the best way to extract 2 values from a CSV file from each row systematically? Luca Cerone <luca.cerone@gmail.com> - 2013-09-28 03:21 -0700

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