Update miniconda install

[rhattersley]

Let's see if it fixes the Travis-CI issues...

[rhattersley]

It does! \o/

[cpelley]

Annoying how they have a 'latest' for the Python2 version but no equivelent for the Python3 version
http://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh

[ocefpaf]

@cpelley I do not remember where I saw this setup originally (the link below is my modified version):

https://github.com/ocefpaf/python-seawater/blob/master/.travis.yml

But using env in travis you can download the latest conda for Python2 and then create environments for both py2 and py3.

[cpelley]

Thanks @ocefpaf. This begs the question, why we are explicitly downloading the Python3 miniconda version in our travis...?

[pelson]

This begs the question, why we are explicitly downloading the Python3 miniconda version in our travis...?

A fair question. In the next few weeks I'm considering writing a python-ci module which abstracts this out of Iris, Cartopy, Biggus and any other project which is doing this kind of thing (e.g. matplotlib). There are similar scripts for CI on Windows machines that you really don't want to be copied everywhere... 😉

[rhattersley]

why we are explicitly downloading the Python3 miniconda version in our travis...?

Because it's quicker.

[cpelley]

I'm considering writing a python-ci module which abstracts this out of Iris, Cartopy, Biggus and any other project which is doing this kind of thing (e.g. matplotlib)

Sounds like a great idea