Pep8
Pep8


Former-commit-id: b8ad25a775336a65c71427c6f8832c3ced7a8db5 [formerly 2dce2c8c21e1c21836f92bd47dce91137d66e1b8]
Former-commit-id: 773e2c36d80b72a605e810eb99d2989c8a95f2af
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine