Make changes requested by review
Make changes requested by review

- Cleaned up comments
- Moved SHA256 hash to key
- Pinned the python version in `host`

goanpeca/staged-recipes,conda-forge/staged-recipes,ocefpaf/staged-recipes,johanneskoester/staged-recipes,jakirkham/staged-recipes,kwilcox/staged-recipes,ocefpaf/staged-recipes,kwilcox/staged-recipes,goanpeca/staged-recipes,jakirkham/staged-recipes,johanneskoester/staged-recipes,conda-forge/staged-recipes