add explicit path to retrieve oq-python commands
add explicit path to retrieve oq-python commands


Former-commit-id: e237da3f3426d2c9c9b8f4302694079ba9ff18ac [formerly 18c2735c6be7506e556527edf2f079a6b95934dd] [formerly 18c2735c6be7506e556527edf2f079a6b95934dd [formerly 411773bc07bc44ba5089fc142a26eaa93735d502]]
Former-commit-id: cbd82d3f66903aecda35d043083f8c61b02f66dd
Former-commit-id: ed1def5727ba138a0493e0df41fab392fab1708a
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine