[pypy-issue] [issue1429] CSV module is slow

mrjbq7 tracker at bugs.pypy.org
Thu Mar 21 15:41:36 CET 2013

New submission from mrjbq7 <mrjbq7 at gmail.com>:

Using the 6.7MB airport.csv file from ourairports.com 
(http://www.ourairports.com/data/airports.csv) saved to "/tmp/airports.csv", and 
the attached python script (csvtest.py).

On Python 2.7.2:

reading took 0.137 seconds
writing took 0.126 seconds
complete took 0.264 seconds

On PyPy 1.9.0:

reading took 0.627 seconds
writing took 0.491 seconds
complete took 1.118 seconds

messages: 5485
nosy: mrjbq7, pypy-issue
priority: performance bug
status: unread
title: CSV module is slow

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