pykern and ruyaml integration work

[jeinstei]

Work in support of changing out module dependencies for more portability in non-RS environments

• Identify and document current conflicts due to versions and requirements
• Check version of YAML files; if using ruYAML, can add % YAML 1.1
• Create branch with pykern removed
• Check on config and other resource file locations
• Test branch in production and dev environments
• Modify documentation to support any changes

[cchall]

*https://pypi.org/project/ruamel.yaml/

[jeinstei]

It is an interesting situation, it sounds like, as there is also the ruyaml fork to keep maintenance (https://github.com/pycontribs/ruyaml/). I'm ambivalent about which we use as long as the sourceforge ruamel one continues to be maintained

[cchall]

The page for ruyaml states:

ruyaml package is a fork of ruamel.yaml aimed to made in order to secure the future of the library, mainly by having a pool of maintainers.

Given that it is currently running behind https://pypi.org/project/ruamel.yaml/ I would say that we should continue to just use ruamel.yaml unless there is some sort of statement that the ruamel.yaml developer is ceasing maintenance.