Re: Python 2.x and 3.x usage survey

References	<mailman.4731.1388440598.18130.python-list@python.org> <hqr7c9dce9krvt7rm49ujptl4dl9mr68gl@4ax.com> <52c3fe0b$0$29984$c3e8da3$5496439d@news.astraweb.com> <th28c95ouhqmicaerkor4sf1l9vv4gv4ub@4ax.com>
Date	2014-01-01 23:39 +1100
Subject	Re: Python 2.x and 3.x usage survey
From	Chris Angelico <rosuav@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.4777.1388580001.18130.python-list@python.org> (permalink)

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On Wed, Jan 1, 2014 at 11:38 PM, Steve Hayes <hayesstw@telkomsa.net> wrote:
> I was thinking or of this:
>
>>>> python g:\work\module1.py
>   File "<stdin>", line 1
>     python g:\work\module1.py
>            ^
>
> Which gave a different error the previous time I did it.
>
> But, hey, it worked from the DOS prompt
>
> C:\Python32>python g:\work\module1.py
> Hello Module World

That's how you invoke a script. Python isn't fundamentally a shell
scripting language (like bash, REXX, batch, etc), so there's a
distinct difference between Python commands (which go into .py files
or are executed at the ">>>" prompt) and shell commands (including
"python", which invokes the Python interpreter).

> The biggest problem I have is that when something doesn't work, I don't know
> if I have done something stupid, or if it's just an incompatibility of the
> different versions.

Easiest way to eliminate the confusion is to match your tutorial and
your interpreter. That's why I recommend going with the python.org
tutorial; you can drop down the little box in the top left and choose
the exact version of Python that you're running. It WILL match.

ChrisA

Thread

Python 2.x and 3.x usage survey Dan Stromberg <drsalists@gmail.com> - 2013-12-30 13:56 -0800
  Re: Python 2.x and 3.x usage survey Steve Hayes <hayesstw@telkomsa.net> - 2014-01-01 12:41 +0200
    Re: Python 2.x and 3.x usage survey Chris Angelico <rosuav@gmail.com> - 2014-01-01 21:52 +1100
    Re: Python 2.x and 3.x usage survey Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-01-01 22:37 +1100
      Re: Python 2.x and 3.x usage survey Steve Hayes <hayesstw@telkomsa.net> - 2014-01-01 14:38 +0200
        Re: Python 2.x and 3.x usage survey Chris Angelico <rosuav@gmail.com> - 2014-01-01 23:39 +1100
        Re: Python 2.x and 3.x usage survey Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-01-01 12:44 +0000
        Re: Python 2.x and 3.x usage survey David <bouncingcats@gmail.com> - 2014-01-02 01:07 +1100
          Re: Python 2.x and 3.x usage survey Steve Hayes <hayesstw@telkomsa.net> - 2014-01-01 19:55 +0200
        Re: Python 2.x and 3.x usage survey Dave Angel <davea@davea.name> - 2014-01-01 09:32 -0500
    Re: Python 2.x and 3.x usage survey Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-01-01 12:54 -0500
  Re: Python 2.x and 3.x usage survey John Ladasky <john_ladasky@sbcglobal.net> - 2014-01-10 09:36 -0800
    Re: Python 2.x and 3.x usage survey Ned Batchelder <ned@nedbatchelder.com> - 2014-01-10 12:48 -0500
      Re: Python 2.x and 3.x usage survey John Ladasky <john_ladasky@sbcglobal.net> - 2014-01-10 11:43 -0800
        Re: Python 2.x and 3.x usage survey MRAB <python@mrabarnett.plus.com> - 2014-01-10 19:53 +0000
        Re: Python 2.x and 3.x usage survey Ned Batchelder <ned@nedbatchelder.com> - 2014-01-10 14:50 -0500
    Re: Python 2.x and 3.x usage survey Ethan Furman <ethan@stoneleaf.us> - 2014-01-10 10:02 -0800

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