pytest

[ocefpaf]

This doe not switch to py.test entirely, there are still a few tweaks needed to get rid of nose. Let's see if this helps diagnose #80.

[ocefpaf]

@ayan-usgs it seems that netCDF4-python 1.2.2 introduced some change that is causing the segfault on Travis-CI.

Downgrading solves the problem, but what is weird is that I can run the tests locally with 1.2.2 without any problem. (It is one of those hard to find bug.)

For now let's just use 1.2.1 and while for 1.2.3 and check if the problem is still there.

PS: I will investigate this more and report it upstream. I have a suspicion that it might be affecting some of my other projects and maybe this build.

[ocefpaf]

This line did not work with early conda, but it is fine now!

Ping @kwilcox. You asked me recently about standardizing conda and pip requirements. I guess that conda can take pip syntax now as long as the package name is the same. (Both pip and conda are case insensitive BTW.)

[ocefpaf]

Just to provide another data point. My project gridgeo was also being affect by this:
pyoceans/gridgeo#18

[ayan-usgs]

@ocefpaf,

Thanks for figuring that out! Would have taken me awhile.