Merge pull request #1625 from acasajus/dev-split

[v7r0][Splitters] Splitters PR
unused import
removed string module, beautify
unused imports
removed a space
unused import
Unused import
Fix some imports, fix a bug
Fix imports
class inherits from object
unused imports
fix spacing and inherit from object
fix small bug, and unherit from object
fix imports and small bug
unused imports and bug fixes
imports + pylint beautify
Mostly imports
fix imports + error found in StorageFactory.
Imports and comment unreachable code
imports