[W0621(redefined-outer-name) in connector/unit/mapper.py

Redefining name 'changed_by' from outer scope
Redefining name 'mapping' from outer scope
Redefining name 'only_create' from outer scope
Redefining name 'job' from outer scope
Silent "Statement seems to have no effect"

Because we just want to check that it raises an Exception
Redefining name 'watcher' from outer scope
Redefining name 'job' from outer scope
Redefining built-in 'type'