[ python-Bugs-1072404 ] Bugs in _csv module - lineterminator

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Bugs item #1072404, was opened at 2004-11-24 12:00
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Category: Python Library
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Chris Withers (fresh)
Assigned to: Nobody/Anonymous (nobody)
Summary: Bugs in _csv module - lineterminator

Initial Comment:
On trying to parse a '\r' terminated csv generated on a
Mac, I get a "newline inside string" error from the csv
module.

Two things sprung to mind having read:
http://cvs.sourceforge.net/viewcvs.py/python/python/dist/src/Modules/_csv.c?rev=1.15&view=markup
...for a bit.

1. The Dialect's lineterminator doesn't appear to be
used when parsing a CSV. This feels like a bug to be,
'cos I could specify the terminator if
Reader_iternext(ReaderObj *self) used it :-S

2. The processing in Reader_iternext(ReaderObj *self)
assumes that a '\r' will be followed by '\0' for Macs,
'\n' for windows, and anything else is an error.

but:

>>> c = open('var\data\metadata.csv').read()
>>> c[:100]
'BENEFIT,,Subjects relating to all benefits,AB
\rBENEFIT,PARTNERDIED,Bereavement

Should I be expecting to see a '\0' there?

Anyway, the real bug seems to be the reader's ignorance
of the lineterminator. However, even if my analysis is
off the mark, the problem still exists :-S

cheers,

Chris

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