Avoid name collision with dir() builtin.
Avoid name collision with dir() builtin.


Former-commit-id: 9ddad3ddd747fc7398da02f012c13b20c817b64d [formerly 9ddad3ddd747fc7398da02f012c13b20c817b64d [formerly e06bcef508cfb2b18df4f21aff12586c291cd5b8]]
Former-commit-id: 0e19aba0f5488b404476c183dabfdac27e880482
Former-commit-id: 2385dec7fcd91b6133b501337853e549fc859359
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine