Fix `pylint` warning

node-hub/opencv-plot/opencv_plot/main.py

@@ -1,6 +1,6 @@
 import os
 import argparse
-import cv2
+from cv2 import cv2  # Importing cv2 this way remove error warnings``
 
 import numpy as np
 import pyarrow as pa
@@ -13,7 +13,7 @@ RUNNER_CI = True if os.getenv("CI") == "true" else False
 class Plot:
     frame: np.array = np.array([])
 
-    bboxes: {} = {
+    bboxes: dict = {
         "bbox": np.array([]),
         "conf": np.array([]),
         "names": np.array([]),
@@ -136,7 +136,7 @@ def main():
                     channels = 3
                     storage_type = np.uint8
                 else:
-                    raise Exception(f"Unsupported image encoding: {encoding}")
+                    raise RuntimeError(f"Unsupported image encoding: {encoding}")
 
                 image = {
                     "width": np.uint32(arrow_image["width"].as_py()),
@@ -164,7 +164,7 @@ def main():
             elif event_id == "text":
                 plot.text = event["value"][0].as_py()
         elif event_type == "ERROR":
-            raise Exception(event["error"])
+            raise RuntimeError(event["error"])
 
 
 if __name__ == "__main__":

node-hub/opencv-video-capture/opencv_video_capture/main.py

@@ -1,6 +1,6 @@
 import os
 import argparse
-import cv2
+from cv2 import cv2  # Importing cv2 this way remove error warnings``
 
 import numpy as np
 import pyarrow as pa
@@ -115,7 +115,7 @@ def main():
                 node.send_output("image", pa.array([image]), event["metadata"])
 
         elif event_type == "ERROR":
-            raise Exception(event["error"])
+            raise RuntimeError(event["error"])
 
 
 if __name__ == "__main__":

node-hub/ultralytics-yolo/ultralytics_yolo/main.py

@@ -52,7 +52,7 @@ def main():
                     channels = 3
                     storage_type = np.uint8
                 else:
-                    raise Exception(f"Unsupported image encoding: {encoding}")
+                    raise RuntimeError(f"Unsupported image encoding: {encoding}")
 
                 image = {
                     "width": np.uint32(arrow_image["width"].as_py()),
@@ -68,6 +68,8 @@ def main():
 
                 if encoding == "bgr8":
                     frame = frame[:, :, ::-1]  # OpenCV image (BGR to RGB)
+                else:
+                    raise RuntimeError(f"Unsupported image encoding: {encoding}")
 
                 results = model(frame, verbose=False)  # includes NMS
 
@@ -90,7 +92,7 @@ def main():
                 )
 
         elif event_type == "ERROR":
-            raise Exception(event["error"])
+            raise RuntimeError(event["error"])
 
 
 if __name__ == "__main__":