Code review comment for lp:~sylvain-pineau/checkbox/camera_test_cheese_introspection

"./camera still"
works well on dino2 (CID 201508-18005) besides one small inline comment (please see below)

-------------

"./camera display"
crashed. The error message is:

http://paste.ubuntu.com/15760725/

./camera_test:570: PyGIWarning: Cheese was imported without specifying a version first. Use gi.require_version('Cheese', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Cheese
Traceback (most recent call last):
  File "./camera_test", line 575, in <module>
    sys.exit(getattr(camera, args.test)())
  File "./camera_test", line 248, in display
    camera.set_device_by_device_node(self.args.device)
AttributeError: 'Camera' object has no attribute 'set_device_by_device_node'