[yt-dev] Managing dropping python2 support

Matthew Turk matthewturk at gmail.com
Mon May 22 09:35:36 PDT 2017


Thanks for sending this on, Nathan.

Also at PyCon, Katy Huff gave a (really really good) keynote that
mentions yt:  https://www.youtube.com/watch?v=kaGS4YXwciQ

On Sat, May 20, 2017 at 10:41 PM, Nathan Goldbaum <nathan12343 at gmail.com> wrote:
> Hi all,
>
> PyCon is going on right now in Portland. One of the talks today was about
> how IPython managed dropping support for python2 in IPython 6.0. You can
> watch the talk here:
>
> https://youtu.be/2DkfPzWWC2Q
>
> Some takeaways from me (all opinions my own):
>
> IPython probably did this a bit too early. Since they're relying on features
> in pip and setuptools that were only added a few months ago, users are
> unlikely to have up-to-date versions that will behave nicely.
>
> On the other hand, IPython is a big enough package that they are actually
> driving people to update their pip installation after hitting some breakage.
>
> We can do things now to minimize pain in the future if we do drop support
> for some python versions we support right now:
>
> * Define requires_python in our setup.py
> * Update our documentation and scripts to use "pip install ." or "pip
> install -e ." instead of "python setup.py install" or "develop"
>
> Nathan
>
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