Odd csv column-name truncation with only one column

Date	2012-07-19 06:21 -0500
From	Tim Chase <python.list@tim.thechases.com>
Subject	Odd csv column-name truncation with only one column
Newsgroups	comp.lang.python
Message-ID	<mailman.2297.1342696862.4697.python-list@python.org> (permalink)

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tim@laptop:~/tmp$ python
Python 2.6.6 (r266:84292, Dec 26 2010, 22:31:48)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import csv
>>> from cStringIO import StringIO
>>> s = StringIO('Email\nfoo@example.com\nbar@example.org\n')
>>> s.seek(0)
>>> d = csv.Sniffer().sniff(s.read())
>>> s.seek(0)
>>> r = csv.DictReader(s, dialect=d)
>>> r.fieldnames
['Emai', '']

I get the same results using Python 3.1.3 (also readily available on
Debian Stable), as well as working directly on a file rather than a
StringIO.

Any reason I'm getting ['Emai', ''] (note the missing ell) instead
of ['Email'] as my resulting fieldnames?  Did I miss something in
the docs?

-tkc

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Thread

Odd csv column-name truncation with only one column Tim Chase <python.list@tim.thechases.com> - 2012-07-19 06:21 -0500
  Re: Odd csv column-name truncation with only one column Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-19 12:08 +0000
  Re: Odd csv column-name truncation with only one column Hans Mulder <hansmu@xs4all.nl> - 2012-07-19 15:52 +0200
    Re: Odd csv column-name truncation with only one column Tim Chase <python.list@tim.thechases.com> - 2012-07-19 13:01 -0500
    Re: Odd csv column-name truncation with only one column Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-07-19 17:10 -0400
      Re: Odd csv column-name truncation with only one column Hans Mulder <hansmu@xs4all.nl> - 2012-07-20 18:59 +0200
        Re: Odd csv column-name truncation with only one column Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-07-20 14:09 -0400
    Re: Odd csv column-name truncation with only one column Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-20 08:31 +0000

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