diff --git a/rosbot_controller/launch/controller.launch.py b/rosbot_controller/launch/controller.launch.py
index 723de928..6693d2c8 100644
--- a/rosbot_controller/launch/controller.launch.py
+++ b/rosbot_controller/launch/controller.launch.py
@@ -120,10 +120,7 @@ def generate_launch_description():
 
     namespaced_robot_controllers_config = ReplaceString(
         source_file=robot_controllers_config,
-        replacements={
-            "<robot_namespace>": namespace,
-            "//": "/"
-        },
+        replacements={"<robot_namespace>": namespace, "//": "/"},
     )
 
     control_node = Node(
diff --git a/rosbot_utils/rosbot_utils/flash_firmware.py b/rosbot_utils/rosbot_utils/flash_firmware.py
index 078f6922..cbaeaa77 100755
--- a/rosbot_utils/rosbot_utils/flash_firmware.py
+++ b/rosbot_utils/rosbot_utils/flash_firmware.py
@@ -14,14 +14,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import subprocess
-import os
-import sys
 import argparse
-import signal
 import glob
-import requests
+import os
+import signal
+import subprocess
+import sys
+
 import ament_index_python.packages
+import requests
 
 # Global variable to hold the subprocess reference
 subproc = None