reformat to make linter happy

Author: berndpfrommer

��launch/cam.launch.py

@@ -16,48 +16,47 @@
 #
 
 import argparse
-from launch import LaunchDescription
-from launch_ros.actions import Node
-
 import os
 import sys
 
 from ament_index_python.packages import get_package_share_directory
+from launch import LaunchDescription
+from launch_ros.actions import Node
 
 
 def generate_launch_description():
     ld = LaunchDescription()
 
-    parser = argparse.ArgumentParser(description="usb_cam launch")
+    parser = argparse.ArgumentParser(description='usb_cam launch')
     parser.add_argument(
-        "-n", "--node-name", dest="node_name", type=str, help="name for device", default="usb_cam"
+        '-n', '--node-name', dest='node_name', type=str, help='name for device', default='usb_cam'
     )
 
     args, unknown = parser.parse_known_args(sys.argv[4:])
 
-    usb_cam_dir = get_package_share_directory("usb_cam")
+    usb_cam_dir = get_package_share_directory('usb_cam')
 
     # get path to params file
-    params_path = os.path.join(usb_cam_dir, "config", "params.yaml")
+    params_path = os.path.join(usb_cam_dir, 'config', 'params.yaml')
 
     node_name = args.node_name
 
     print(params_path)
     ld.add_action(
         Node(
-            package="usb_cam",
-            executable="usb_cam_node_exe",
-            output="screen",
+            package='usb_cam',
+            executable='usb_cam_node_exe',
+            output='screen',
             name=node_name,
             parameters=[
                 params_path,
                 {
-                    "ffmpeg_image_transport.encoding": "h264_vaapi",
-                    # "ffmpeg_image_transport.encoding": "libx264",
-                    # "ffmpeg_image_transport.encoding": "hevc_nvenc",
-                    "ffmpeg_image_transport.profile": "main",
-                    "ffmpeg_image_transport.preset": "ll",
-                    "ffmpeg_image_transport.gop": 15,
+                    'ffmpeg_image_transport.encoding': 'h264_vaapi',
+                    # 'ffmpeg_image_transport.encoding': 'libx264',
+                    # 'ffmpeg_image_transport.encoding': 'hevc_nvenc',
+                    'ffmpeg_image_transport.profile': 'main',
+                    'ffmpeg_image_transport.preset': 'll',
+                    'ffmpeg_image_transport.gop': 15,
                 },
             ],
         )