Pep8
Pep8


Former-commit-id: ba3af96eb6ee2d516bcf8c75c4962ce78f5423dc [formerly d5c6576997a55892abb646ace7b8cd4391c1e31c]
Former-commit-id: 9a46240087e02e120e06d4aebc0612b40aa7abc8
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine