PEP8 fix
PEP8 fix


Former-commit-id: d4b3ceea9d30bf522a7c596f7e877cea4a7bb1ee [formerly 190ae4c202df044383ffb3c00d11618f62991351] [formerly 190ae4c202df044383ffb3c00d11618f62991351 [formerly e6b420eca8bdf1bb8aa484c5d66f8529dc341e11]]
Former-commit-id: d7275816db1ec79abf0c6f857796f84fac6a9375
Former-commit-id: b2e8bb6fa5994c1278e6614e114c23028af4277a
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine