Tools » teuthology

If someone (like me) writes a task that is buggy and cannot be imported, teuthology will currently fail like this:

2018-11-22T11:00:20.674 INFO:teuthology.run_tasks:Running task foo...
2018-11-22T11:00:20.708 ERROR:teuthology.run_tasks:Saw exception from tasks.
Traceback (most recent call last):
  File "/home/ubuntu/teuthology/teuthology/run_tasks.py", line 95, in run_tasks
    run_one_task(taskname, stack, timer, ctx=ctx, config=config)
  File "/home/ubuntu/teuthology/teuthology/run_tasks.py", line 70, in run_one_task
    task = get_task(taskname)
  File "/home/ubuntu/teuthology/teuthology/run_tasks.py", line 31, in get_task
    raise ImportError("Could not find task '{}'".format(name))
ImportError: Could not find task 'foo'

This error message is misleading (or just downright wrong) because the task foo.py does exist in the right place. It just can't be imported due to some problem inside foo.py. But this problem is not reported because teuthology suppresses the "real" ImportError exception and replaces it with its own.

In this case, the "real" ImportError was

but that one didn't appear in the log. Instead, we see "ImportError: Could not find task 'foo'", which makes no sense because qa/tasks/foo.py obviously exists.