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Date: Fri, 21 Mar 2014 04:30:58 +1100
Subject: Re: running python 2 vs 3
From: Chris Angelico <rosuav@gmail.com>
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Xref: csiph.com comp.lang.python:68590

On Fri, Mar 21, 2014 at 4:10 AM, notbob <notbob@nothome.com> wrote:
> On 2014-03-20, Zachary Ware <zachary.ware+pylist@gmail.com> wrote:
>
>> If you're specifying the interpreter in your command (by calling
>> "python <scriptname>.py", etc), the shebang won't mean anything
>> anyway.
>
> DOH!
>
> I was following you, fine, until that last sentence.  Then how should
> I invoke the scripts? ....as your example is exactly how I've been
> doing it with 2.7, as per Learn Python the Hard Way.  Simply
> ./<scriptname>.py from the appropriate directory (assuming I keep both
> vers in separate dirs)?

That's a fine way to do it. Zachary is mentioning an alternative, and
showing that the shebang doesn't hurt (it's a comment to Python), so
go ahead and put the shebang in all your scripts.

ChrisA