Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Laura Creighton Newsgroups: comp.lang.python Subject: Re: Python 2 vs Python 3 for teaching Date: Sun, 01 Nov 2015 15:49:37 +0100 Lines: 22 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Trace: news.uni-berlin.de 2Q8BkmVr/DcN7ymGSAAYfwWb/fPhD2Wrk4Tlq5XWSqzw== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'subject:Python': 0.05; 'cc:addr:python-list': 0.09; '2to3': 0.09; 'prefixes': 0.09; 'received:openend.se': 0.09; 'received:theraft.openend.se': 0.09; 'python': 0.10; '2.7': 0.13; '>on': 0.16; 'cc:addr:lac': 0.16; 'cc:addr:openend.se': 0.16; 'from:addr:lac': 0.16; 'from:addr:openend.se': 0.16; 'from:name:laura creighton': 0.16; 'message-id:@fido.openend.se': 0.16; 'received:fido': 0.16; 'received:fido.openend.se': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'tutoring': 0.16; 'wrote:': 0.16; 'byte': 0.18; 'laura': 0.18; 'stick': 0.18; '>>>': 0.20; 'library': 0.20; '2015': 0.20; 'cc:addr:python.org': 0.20; 'cc:2**1': 0.22; '2.x': 0.22; '3.x': 0.22; 'ascii': 0.22; 'converted': 0.22; 'cc:no real name:2**0': 0.22; 'am,': 0.23; 'mon,': 0.24; 'chris': 0.26; 'converting': 0.27; 'idea': 0.28; 'received:se': 0.29; 'strings,': 0.29; 'there.': 0.30; "i'm": 0.30; 'code': 0.30; 'branch': 0.30; 'nov': 0.35; 'possible,': 0.35; 'unicode': 0.35; "wasn't": 0.36; 'subject:: ': 0.37; 'there,': 0.37; 'say': 0.37; 'charset:us- ascii': 0.37; 'rather': 0.39; 'where': 0.40; 'some': 0.40; 'company': 0.60; 'header:Message-Id:1': 0.61; 'course': 0.62; 'other.': 0.64; 'teaching': 0.69; 'teach': 0.70; '2:45': 0.84; 'etc,': 0.84; 'header:In-reply-to:1': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=openend.se; s=default; t=1446389379; bh=kgZW+kgaR9CbbAU3NtpS5yVME3n2at+6hWj4Ahs5a2Q=; h=To:cc:From:Subject:In-reply-to:References:Date:From; b=VESwCIxfBgUNqS95lGtW4xgyXQqu1qSymK5w3yeox1QHlHrSmT4PAWw2IGxzZRk6q xi7IJqHS9HJwSqulyZz3gwlzIpV2ZGCl6gErIvnpsAqbDzLHRPaomx4XUtEocq9qLe oG6kHSvWBJxkOiS3xCM0qPWjRzxMaVtb4GHIMAi0= In-reply-to: Comments: In-reply-to Chris Angelico message dated "Mon, 02 Nov 2015 01:27:24 +1100." Content-ID: <24175.1446389377.1@fido> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.3.9 (theraft.openend.se [82.96.5.2]); Sun, 01 Nov 2015 15:49:39 +0100 (CET) X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com comp.lang.python:98047 In a message of Mon, 02 Nov 2015 01:27:24 +1100, Chris Angelico writes: >On Mon, Nov 2, 2015 at 1:11 AM, wrote: >> On Nov 1, 2015 2:45 AM, "Chris Angelico" wrote: >>> >>> I'm proud to say that a Python tutoring company has just converted its >>> course over from teaching Python 2.7 to teaching 3.x. For the >>> naysayers out there, it actually wasn't much of a transition; >> >> This would make an excellent opportunity to develop a curriculum to teach >> students how to maintain a 2.x and 3.x code base using 2to3. >> >> 2.x is not going away as fast as some would like. >I'd rather not use 2to3 there. If you want to maintain a library that >can be used from 2.x and 3.x, it's much better to aim for the >compatible middle - u prefixes on all Unicode strings, b prefixes on >all byte strings, stick to ASCII where possible, etc, etc. Much easier >than writing code for one branch and then converting to the other. How about using six, same idea with the curriculum? Laura