How to return values from For Loop via return in a function

[stullis]

To return those values, you have to store them in a list outside of the loop and then return the loop:

def detected_objects_2():
    b_values = []
    for image_path in TEST_IMAGE_PATHS:
        image = Image.open(image_path)
     
        folder_path = "test_images/" #folder path to your images 
     
        File_Lst = []
     
        for file in os.listdir(folder_path):
            File_Lst.append(file)
         
        dog_index = File_Lst.index('image1.jpg')           
        dog_str = File_Lst[dog_index]
     
        img = cv2.imread(folder_path + dog_str )
        cv2.destroyAllWindows()         
        cv2.imshow("Press KEYS to know which direction you want to go with your robot", img)
     
        image_np = load_image_into_numpy_array(image)
        image_np_expanded = np.expand_dims(image_np, axis=0)
        output_dict = run_inference_for_single_image(image_np, detection_graph)
     
        a, b = vis_util.visualize_boxes_and_labels_on_image_array(
          image_np,
          output_dict['detection_boxes'],
          output_dict['detection_classes'],
          output_dict['detection_scores'],
          category_index,
          instance_masks=output_dict.get('detection_masks'),
          use_normalized_coordinates=True,
          line_thickness=8)
        b_values.append(b)
        plt.figure(figsize=IMAGE_SIZE)
        cv2.destroyAllWindows()
        cv2.imshow("Object Detector", image_np)
        #print(b)
        #if b == 'turnLeft':
          #print("Turn Left !!!")
        #elif b == 'turnRight':
          #print("Turn Right !!!")
        #else:
          #print("NO DETECTION !!!")   
         
        k = cv2.waitKey(0)
        if k == ord('a'): # wait for 'a' key to upload traffic signs one by one
            cv2.destroyAllWindows()
            cv2.imshow("Object Detector", image_np)
           
        elif k == ord('s'):
            cv2.waitKey(0)
            cv2.destroyAllWindows()
            break    
    return b_values