[Distutils] PEP 439 and pip bootstrap updated
brett at python.org
Wed Jul 10 20:55:00 CEST 2013
On Wed, Jul 10, 2013 at 12:11 PM, Paul Moore <p.f.moore at gmail.com> wrote:
> On 10 July 2013 15:28, Brett Cannon <brett at python.org> wrote:
>> So, at present, if I (as a 100% Python 3 user) want to install a package,
>>> I type "pip install XXX". No version suffix. In the same way, to invoke
>>> Python, I type "py" (I'm on Windows here) or if I want the currently active
>>> virtualenv, "python".
>> But you should be typing python3 here, not python (and PEP 394 is trying
>> to get people to start using python2 as the name to invoke).
> So - that's a major behaviour change on Windows. At the moment, Python 3.3
> for Windows installs python.exe and pythonw.exe. There are no versioned
> executables at all. Are you saying that in 3.4 this will change? That will
> break so many things I have to believe you're wrong or I've misunderstood
> you. OTOH, adding python3.exe and python3w.exe (or is that pythonw3.exe?)
> which I can then ignore is fine by me (but in that case, the change doesn't
> affect my point about the pip command).
Didn't know Windows was never updated to use a versioned binary. That's
> As I say, I understand Unix is different. This is a purely Windows point -
> and in the context of the PEP, that's what I'm saying, please can we be
> careful to be clear whether the plan is for the new pip bootstrap to favour
> existing platform conventions or uniformity (with the further complication
> of needing to consider the full pip distribution's behaviour - and there, I
> will be lobbying hard against any change to require a pip3 command to be
> used, at least on Windows).
> As things stand, I can assume the PEP specifies Unix behaviour and is
> vague or silent on Windows variations, or I can ask for clarification, and
> for the results to be documented in the PEP. Up to now I was doing the
> former, but I'm moving towards the latter - hence my question(s).
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