The `docker` tests need docker. Skip them if not available.
Include the python encoding file header on tests.
Fix PyLint W1401, anomalous backslash.
Include the coding header.
PEP8 E302 and E303 blank lines fixes.
Indexed `.format()` curly braces!
Fix `Undefined variable`
Fix PyLint W0105(String statement has no effect)
Fix PyLint C0322 and C0324 - Spaces around opertor and commas
Ignore the relative import warning.
Remove extra white-space.
Fix PEP8 E261 - White space before inline comment
Extra or misplaced white-space
Ignore the exception not declared Pylint error.
Remove duplicate method
Disable some PyLint warnings.
Merge pull request #8855 from s0undt3ch/hotfix/tests-pylint-fixes

tests suite pylint fixes