Reformat .gitignore: consolidate/group entries,
(re)use dir formatting from sample Python.gitignore, add comments. + Add .python-version for working with Pyenv.
coverage: 81.691% (-0.2%) from 81.904%
when pulling 39fde8ca83b63a23cc6ecd77ceb0513c4a3329cb on kk/feat/improve_gitignore
into 3681cd41f6e4cc12cf3388cbcc1cb37c20979749 on master.
coverage: 81.691% (-0.2%) from 81.904%
when pulling 3d272a6970bcb872c45eb2e7d33f4b74275a3c68 on kk/feat/improve_gitignore
into 3681cd41f6e4cc12cf3388cbcc1cb37c20979749 on master.
coverage: 81.904%. remained the same
when pulling 3d272a6970bcb872c45eb2e7d33f4b74275a3c68 on kk/feat/improve_gitignore
into 3681cd41f6e4cc12cf3388cbcc1cb37c20979749 on master.
Reformat .gitignore: consolidate/group entries, (re)use dir formatting from sample Python.gitignore, add comments. + Add .python-version for working with Pyenv.