26a3d7e6d0
This change fixes few linting errors which are discovered by newer linters. - bashate: consistent 4 chars identation - python unamed Exceptions - python space around operators - python space after # comments - python unused imports - python unknown escapes (errors after py36) - python double newline before methods Change-Id: I5d2f37d1c820b1983355be60c09de581a72e08e0 Needed-By: https://review.opendev.org/#/c/665445/