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From: Pete Wyckoff <pw@padd.com>
To: John Keeping <john@keeping.me.uk>
Cc: Junio C Hamano <gitster@pobox.com>,
	Michael Haggerty <mhagger@alum.mit.edu>,
	git@vger.kernel.org, "Eric S. Raymond" <esr@thyrsus.com>,
	Felipe Contreras <felipe.contreras@gmail.com>,
	Sverre Rabbelier <srabbelier@gmail.com>
Subject: Re: [RFC/PATCH 2/8 v3] git_remote_helpers: fix input when running under Python 3
Date: Wed, 16 Jan 2013 19:29:55 -0500	[thread overview]
Message-ID: <20130117002955.GB15517@padd.com> (raw)
In-Reply-To: <20130116094418.GA9089@river>

john@keeping.me.uk wrote on Wed, 16 Jan 2013 09:45 +0000:
> On Tue, Jan 15, 2013 at 07:03:16PM -0500, Pete Wyckoff wrote:
> > I'd suggest for this Python conundrum using byte-string literals, e.g.:
> > 
> >         lines = check_output(args).strip().split(b'\n')
> > 	value, name = line.split(b' ')
> > 	name = name.strip(b'commit\t')
> > 
> > Essentially identical to what you have, but avoids naming "utf-8" as
> > the encoding.  It instead relies on Python's interpretation of
> > ASCII characters in string context, which is exactly what C does.
> 
> The problem is that AFAICT the byte-string prefix is only available in
> Python 2.7 and later (compare [1] and [2]).  I think we need this more
> convoluted code if we want to keep supporting Python 2.6 (although
> perhaps 'ascii' would be a better choice than 'utf-8').
> 
> [1] http://docs.python.org/2.6/reference/lexical_analysis.html#literals
> [2] http://docs.python.org/2.7/reference/lexical_analysis.html#literals

Drat.  The b'' syntax seems to work on 2.6.8, in spite of
the docs, but certainly isn't in 2.5.

I think you had hit on the best compromise with encoding,
but maybe ascii is a little less presumptuous than utf-8,
and more indicative of the encoding assumption.

		-- Pete

  reply	other threads:[~2013-01-17  0:30 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-12 19:23 [PATCH 0/8] Initial support for Python 3 John Keeping
2013-01-12 19:23 ` [PATCH 1/8] git_remote_helpers: Allow building with " John Keeping
2013-01-12 19:23 ` [PATCH 2/8] git_remote_helpers: fix input when running under " John Keeping
2013-01-13  3:26   ` Michael Haggerty
2013-01-13 16:17     ` John Keeping
2013-01-14  4:48       ` Michael Haggerty
2013-01-14  9:47         ` John Keeping
2013-01-15 19:48           ` [RFC/PATCH 2/8 v2] " John Keeping
2013-01-15 20:51             ` Junio C Hamano
2013-01-15 21:54               ` John Keeping
2013-01-15 22:04                 ` Junio C Hamano
2013-01-15 22:40                   ` [RFC/PATCH 2/8 v3] " John Keeping
2013-01-16  0:03                     ` Pete Wyckoff
2013-01-16  9:45                       ` John Keeping
2013-01-17  0:29                         ` Pete Wyckoff [this message]
2013-01-12 19:23 ` [PATCH 3/8] git_remote_helpers: Force rebuild if python version changes John Keeping
2013-01-12 23:30   ` Pete Wyckoff
2013-01-13 16:26     ` John Keeping
2013-01-13 17:14       ` Pete Wyckoff
2013-01-13 17:52         ` John Keeping
2013-01-15 22:58           ` John Keeping
2013-01-17  0:27             ` Pete Wyckoff
2013-01-12 19:23 ` [PATCH 4/8] git_remote_helpers: Use 2to3 if building with Python 3 John Keeping
2013-01-12 19:23 ` [PATCH 5/8] svn-fe: allow svnrdump_sim.py to run " John Keeping
2013-01-12 19:23 ` [PATCH 6/8] git-remote-testpy: hash bytes explicitly John Keeping
2013-01-12 19:23 ` [PATCH 7/8] git-remote-testpy: don't do unbuffered text I/O John Keeping
2013-01-12 19:23 ` [PATCH 8/8] git-remote-testpy: call print as a function John Keeping
2013-01-12 23:43 ` [PATCH 0/8] Initial support for Python 3 Pete Wyckoff
2013-01-13  0:41   ` John Keeping
2013-01-13 12:34     ` John Keeping
2013-01-13 16:40     ` Pete Wyckoff
2013-01-13 17:35       ` John Keeping
2013-01-17 18:53 ` [PATCH v2 0/8] Initial Python 3 support John Keeping
2013-01-17 18:53 ` [PATCH v2 1/8] git_remote_helpers: allow building with Python 3 John Keeping
2013-01-17 18:53 ` [PATCH v2 2/8] git_remote_helpers: fix input when running under " John Keeping
2013-01-17 18:53 ` [PATCH v2 3/8] git_remote_helpers: force rebuild if python version changes John Keeping
2013-01-17 18:53 ` [PATCH v2 4/8] git_remote_helpers: use 2to3 if building with Python 3 John Keeping
2013-01-18  5:15   ` Sverre Rabbelier
2013-01-18 10:32     ` John Keeping
2013-01-19  7:52       ` Sverre Rabbelier
2013-01-17 18:53 ` [PATCH v2 5/8] svn-fe: allow svnrdump_sim.py to run " John Keeping
2013-01-17 18:53 ` [PATCH v2 6/8] git-remote-testpy: hash bytes explicitly John Keeping
2013-01-17 20:36   ` Junio C Hamano
2013-01-17 20:43     ` Junio C Hamano
2013-01-17 21:00     ` John Keeping
2013-01-17 21:05       ` John Keeping
2013-01-17 22:24       ` Junio C Hamano
2013-01-17 22:30         ` John Keeping
2013-01-17 22:57           ` Junio C Hamano
2013-01-17 18:54 ` [PATCH v2 7/8] git-remote-testpy: don't do unbuffered text I/O John Keeping
2013-01-18  3:50   ` Sverre Rabbelier
2013-01-17 18:54 ` [PATCH v2 8/8] git-remote-testpy: call print as a function John Keeping
2013-01-18  3:48   ` Sverre Rabbelier

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