doc: mention cython in installation note.

[concretevitamin]

I was following http://ray.readthedocs.io/en/latest/install-on-macosx.html to install ray for the first time. Everything worked until the line

python setup.py install

which prompted a cython-not-imported error. An extra pip install cython let me get past this.

[AmplabJenkins]

Can one of the admins verify this patch?

[robertnishihara]

Thanks for the fix! Could you make the same change in doc/source/install-on-ubuntu.rst?

I wonder if I broke this in #878, though I suspect the problem already existed before that.

[robertnishihara]

ok to test

[concretevitamin]

I was hesitant to add it to the Ubuntu notes since I personally did not test it. Added it now.

…

On Wed, Aug 30, 2017 at 11:30 PM Robert Nishihara ***@***.***> wrote: Thanks for the fix! Could you make the same change in doc/source/install-on-ubuntu.rst? I wonder if I broke this in #878 <#878>, though I suspect the problem already existed before that. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#896 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAkLHnOXEqt1LcYg-ZRpr47IQqKFHeOhks5sdlMbgaJpZM4PIXe7> .

[robertnishihara]

Thanks! I think I've seen this problem on Linux as well.

[AmplabJenkins]

Merged build finished. Test PASSed.

[AmplabJenkins]

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/Ray-PRB/1737/
Test PASSed.

[robertnishihara]

Thanks for the fix!