yaml: use ruamel.yaml instead of pyyaml

- ruamel.yaml allows round-tripping comments from/to files
- ruamel.yaml is single-source, python2/python3 compatible
This commit is contained in:
Todd Gamblin
2018-08-19 18:11:52 -07:00
parent 2e8a820afd
commit 63004e3de1
68 changed files with 5165 additions and 8136 deletions

1282
lib/spack/external/ruamel/yaml/emitter.py vendored Normal file

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