pysat 3.0 release preperation

[jklenzing]

Description

Addresses #pysat/pysat#676

Updates tests to use release candidate.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

via travis CI

Checklist:

• Make sure you are merging into the develop (not main) branch
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• Add a note to CHANGELOG.md, summarizing the changes

[jklenzing]

@aburrell , I'm having issues installing apexpy under the travis environment with numpy 1.19.2. I've tried the suggestion from the apexpy site to use pip install --no-binary :apexpy: apexpy, but travis seems to have issues with this.

I've tried setting up an alternate environment using github actions (#45). The install environment works there, but would require some changes under pysat to get the directory setup to work properly.

[aburrell]

Ok, I checked the apexpy travis and it looks like its using numpy 1.19.5. Very confused. What happens if you grab apexpy from github (to see if it's a package issue or a pypi-apexpy combo issue).

[jklenzing]

It seems to be a numpy issue. It compiles if I use numpy 1.20, checking other versions now. The latest version conda has is 1.19.2, which does not work.

[jklenzing]

Ok, I checked the apexpy travis and it looks like its using numpy 1.19.5. Very confused. What happens if you grab apexpy from github (to see if it's a package issue or a pypi-apexpy combo issue).

Installing apexpy by cloning from github works.

[jklenzing]

Linking to #45 (github actions version) and #46 (manual install of apexpy) for discussion

[jklenzing]

Closing in favor of #47