[Distutils] [Numpy-discussion] Proposal: stop supporting 'setup.py install'; start requiring 'pip install .' instead

Robert Collins robertc at robertcollins.net
Mon Nov 2 22:05:02 EST 2015

On 3 November 2015 at 16:02, Nathaniel Smith <njs at pobox.com> wrote:
> On Nov 2, 2015 6:51 PM, "Robert Collins" <robertc at robertcollins.net> wrote:
>> > Ugh. If 'pip (install/wheel) .' is supposed to become the standard way
>> > to build things, then it should probably build in-place by default.
>> > Working in a temp dir makes perfect sense for 'pip install
>> > <requirement>' or 'pip install <url>', but if the user supplies an
>> > actual named on-disk directory then presumably the user is expecting
>> > this directory to be used, and to be able to take advantage of
>> > incremental rebuilds etc., no?
>> Thats what 'pip install -e .' does. 'setup.py develop' -> 'pip install -e
>> .'
> I'm not talking about in place installs, I'm talking about e.g. building a
> wheel and then tweaking one file and rebuilding -- traditionally build
> systems go to some effort to keep track of intermediate artifacts and reuse
> them across builds when possible, but if you always copy the source tree
> into a temporary directory before building then there's not much the build
> system can do.

Ah yes. So I don't think pip should do what it does. It a violation of
the abstractions we all want to see within it. However its not me you
need to convince ;).


Robert Collins <rbtcollins at hp.com>
Distinguished Technologist
HP Converged Cloud

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