Problems with Cython - include working version back into env file

[unoebauer]

Sparked by issue #810, problems with old and new versions of cython become obvious, both on the user side on the Travis testing environment. At least the problems on Travis seem to be under control after using the bleeding-edge cython version and compiling it with a specific flag. See

• cython issue
• PR build bleeding edge cython #829
• PR fix current cython installation problem #838

In the process of this Cython was removed from the current anaconda environment file tardis_env27.yml.

We should include cython back into the env file. This may require establishing a working cython version first.

[wkerzendorf]

Cython 0.28.4 works - except for OSX

[unoebauer]

Any idea about the OSX problems? Is there another cython version that works on OSX? What is our current suggestion to TARDIS users? Self-compile?

[kaushik94]

I think I am facing this issue too on OSX:

[unoebauer]

Hi @kaushik94 - yes this looks like your env does not include a cython version. Try to manually install cython within the env and rebuild Tardis.