added ruff code reivew

examples/mini_pipeline.py

@@ -9,12 +9,16 @@ ORY-MINI：单传感器基础流程
 
 """
 import os
+
 os.environ["OPENCV_VIDEOIO_MSMF_ENABLE_HW_TRANSFORMS"] = "0" 
-import cv2
-import orisys
-import numpy as np
 import argparse
 
+import cv2
+import numpy as np
+
+import orisys
+
+
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument("--video","-v", type=str, default="0", help="视频源：摄像头编号或视频文件路径")
@@ -29,11 +33,13 @@ def main():
     # 输入既可以是摄像头编号，也可以是视频文件路径
     try:
         input = int(args.video)
-        is_camera = True
-        sensor = orisys.Sensor(input, config_name=args.config, verbose=args.verbose)
-    except:
-        is_camera = False
+    except ValueError:
+        # Not a camera index: treat the argument as a video-file path. Falling back
+        # only on the conversion (not on Sensor construction) keeps a real
+        # constructor failure visible instead of retrying it as a file path.
         sensor = orisys.Sensor(args.video, config_name=args.config, verbose=args.verbose)
+    else:
+        sensor = orisys.Sensor(input, config_name=args.config, verbose=args.verbose)
 
     print("\n按键说明：'q' 退出程序，'r' 重置追踪器。")