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Re: So, what's the real story on Python 2 vs Python 3?

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Date Thu, 26 Dec 2013 22:23:15 -0800
Subject Re: So, what's the real story on Python 2 vs Python 3?
From Dan Stromberg <drsalists@gmail.com>
To Rustom Mody <rustompmody@gmail.com>
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On Thu, Dec 26, 2013 at 9:43 PM, Rustom Mody <rustompmody@gmail.com> wrote:
> On Fri, Dec 27, 2013 at 10:50 AM, Andrew Berg <robotsondrugs@gmail.com> wrote:

> As for 2 maybe we need a wiki page. (Or do we have one already?)
> Heres my largely ignoramus attempt at starting that:
>
> 1. print: Use print with (). Dont use funny 2 syntax.
In fact, use parens with a single argument that may be a relatively
complex string % or .format expression.  Otherwise 2.x will think it's
being passed a tuple and display accordingly.

> 2. Always write strings with a u" prefix
3.0, 3.1 and 3.2 don't understand this, but 3.3 does.

In a project I wanted to run on 2.5, 2.6, 2.7, 3.0, 3.1, 3.2 and 3.3,
I dedicated a python module to most of my string constants, and
converted as needed using a pair of helper functions.  If Jython had
been available with 2.7 compatibility at the time, I would've ignored
2.5 and 2.6; now Jython has a 2.7 beta which is good enough for at
least some of my purposes.

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Thread

So, what's the real story on Python 2 vs Python 3? Travis McGee <nobody@nowhere.com> - 2013-12-27 00:04 -0500
  Re: So, what's the real story on Python 2 vs Python 3? Roy Smith <roy@panix.com> - 2013-12-27 00:07 -0500
    Re: So, what's the real story on Python 2 vs Python 3? Chris Angelico <rosuav@gmail.com> - 2013-12-27 16:14 +1100
  Re: So, what's the real story on Python 2 vs Python 3? Andrew Berg <robotsondrugs@gmail.com> - 2013-12-26 23:20 -0600
    Re: So, what's the real story on Python 2 vs Python 3? Grant Edwards <invalid@invalid.invalid> - 2014-01-02 16:34 +0000
  Re: So, what's the real story on Python 2 vs Python 3? Dan Stromberg <drsalists@gmail.com> - 2013-12-26 21:29 -0800
  Re: So, what's the real story on Python 2 vs Python 3? Rustom Mody <rustompmody@gmail.com> - 2013-12-27 11:13 +0530
  Re: So, what's the real story on Python 2 vs Python 3? Chris Angelico <rosuav@gmail.com> - 2013-12-27 17:00 +1100
  Re: So, what's the real story on Python 2 vs Python 3? Dan Stromberg <drsalists@gmail.com> - 2013-12-26 22:23 -0800
  Re: So, what's the real story on Python 2 vs Python 3? Rustom Mody <rustompmody@gmail.com> - 2013-12-27 16:21 +0530
  Re: So, what's the real story on Python 2 vs Python 3? Chris Angelico <rosuav@gmail.com> - 2013-12-27 22:06 +1100
    Re: So, what's the real story on Python 2 vs Python 3? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-27 22:34 +1100
      Re: So, what's the real story on Python 2 vs Python 3? Chris Angelico <rosuav@gmail.com> - 2013-12-27 22:46 +1100
  Re: So, what's the real story on Python 2 vs Python 3? Ned Batchelder <ned@nedbatchelder.com> - 2013-12-27 07:13 -0500
  Re: So, what's the real story on Python 2 vs Python 3? Grant Edwards <invalid@invalid.invalid> - 2014-01-02 16:28 +0000

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