index fix.

backend_refactor/service/video_analyzer.py

@@ -30,7 +30,7 @@ def run_openpose_for_npy_and_video(video_uuid):
                 logging.debug("Running openpose for %s %s" % (video_uuid, c))
 
                 poses = tp(frame)
-                results[c] = poses
+                results[str(c)] = poses  # this is evil, but the AI code expect it to be so.
 
                 canvas = draw_bodypose(frame, poses, 'body_25')