[Cython] Preparations for Cython 0.26.1 and 0.27

[Andreas Mueller]

On 08/03/2017 12:46 PM, Stefan Behnel wrote:
> Ian Henriksen schrieb am 03.08.2017 um 18:16:
>> On Thu, Aug 3, 2017 at 10:05 AM Matthew Brett wrote:
>>> On Thu, Aug 3, 2017 at 2:12 PM, Andy wrote:
>>>> One more thing: If there was a nightly wheel like for scipy and numpy,
>>>> we could run CI with Cython master. That might lead to finding issues
>>>> earlier.
>>>> We probably don't want to build cython from source on CI, as I expect
>>>> that would take too much time.
>>> That's a good idea - I will set that up, and email back here with details.
>> FWIW, depending on your CI needs using the no-cython-compile option can
>> speed
>> things up pretty drastically. Cython files don't compile quite as quickly
>> with that option set, but installing Cython itself is much faster.
> Yes, for one-shot compilations that has always been the recommended way, if
> there really is no suitable binary wheel available.
>
> Cython can always be installed and used as a pure Python package, and even
> run directly from a git checkout (or submodule if you really feel like it),
> without any installation, just by adding it to the PYTHONPATH.
>
Thanks, we'll give that a go. We have a relative substantial amount
of cython code, so let's see how that'll impact runtime.