Fixed Pylint/PEP8
Fixed Pylint/PEP8


Former-commit-id: 7b3fa94cca306beda190cf3da1d183efcfacbe9b [formerly 47f9aa9d8cddfd1c2660d1b103c9a037082741f7] [formerly 47f9aa9d8cddfd1c2660d1b103c9a037082741f7 [formerly 0955bf5f58f46d1157b6c2d5022ca7294e016270]]
Former-commit-id: 7e30c0a647b41a861281fe54c9bafff887246c53
Former-commit-id: df73fbd2172667f6d720e92b3e76825f783c6d81
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine