PEP8 fixes
PEP8 fixes


Former-commit-id: f8059b34fc6f3c3aaee877fbae537944cd833070 [formerly f8059b34fc6f3c3aaee877fbae537944cd833070 [formerly 7883ab3b5dfcc2a2952b1aadc4a3efb82a67bea1]]
Former-commit-id: c6c443f46fe7fa3a1f09c480a6c57744fceab188
Former-commit-id: 78b540cad50887829eabd62154acaa7c4b57ea8a
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine