Fix `NameError`'s and backslash.
Merge pull request #8695 from s0undt3ch/hotfix/jenkins

Fix `NameError`'s and backslash.
Remove duplicate key and update the default value.
Merge pull request #8696 from s0undt3ch/hotfix/jenkins

Remove duplicate key and update the default value.
PyLint's `disable-msg` is deprecated. Use `disable`.
Merge pull request #8697 from s0undt3ch/hotfix/jenkins

PyLint's `disable-msg` is deprecated. Use `disable`.