Update inference.py

inference.py

@@ -360,7 +360,7 @@ def do_associative_tracking(raw_detections, image_meter_width, image_meter_heigh
     
     # Run tracking
     with tqdm(total=len(low_dets), desc="Running tracking", ncols=0, disable=not verbose) as pbar:
-        for i, key in range(len(low_dets)):
+        for i in range(len(low_dets)):
             if gp: gp(i / len(low_dets), pbar.__str__())
             low_boxes = low_dets[key]
             high_boxes = high_dets[key]