diff --git a/launcher/sdw_updater_gui/Updater.py b/launcher/sdw_updater_gui/Updater.py
index 62d1c55d..ba14a88e 100644
--- a/launcher/sdw_updater_gui/Updater.py
+++ b/launcher/sdw_updater_gui/Updater.py
@@ -127,7 +127,7 @@ def _check_updates_debian(vm):
         sdlog.info("Checking for updates {}:{}".format(vm, current_templates[vm]))
         subprocess.check_call(["qvm-run", current_templates[vm], "sudo apt update"])
         subprocess.check_call(
-            ["qvm-run", current_templates[vm], "[[ $(apt list --upgradable | wc -l) -eq 1 ]]",]
+            ["qvm-run", current_templates[vm], "[[ $(apt list --upgradable | wc -l) -eq 1 ]]", ]
         )
     except subprocess.CalledProcessError as e:
         sdlog.error(
@@ -237,7 +237,7 @@ def _write_updates_status_flag_to_disk(status):
     try:
         sdlog.info("Setting update flag to {} in sd-app".format(status.value))
         subprocess.check_call(
-            ["qvm-run", "sd-app", "echo '{}' > {}".format(status.value, flag_file_path_sd_app),]
+            ["qvm-run", "sd-app", "echo '{}' > {}".format(status.value, flag_file_path_sd_app), ]
         )
     except subprocess.CalledProcessError as e:
         sdlog.error("Error writing update status flag to sd-app")
diff --git a/launcher/tests/test_updater.py b/launcher/tests/test_updater.py
index bfb624b2..3e030f1d 100644
--- a/launcher/tests/test_updater.py
+++ b/launcher/tests/test_updater.py
@@ -204,7 +204,7 @@ def test_check_updates_calls_correct_commands(
         subprocess_call_list = [
             call(["qvm-run", current_templates[vm], "sudo apt update"]),
             call(
-                ["qvm-run", current_templates[vm], "[[ $(apt list --upgradable | wc -l) -eq 1 ]]",]
+                ["qvm-run", current_templates[vm], "[[ $(apt list --upgradable | wc -l) -eq 1 ]]", ]
             ),
         ]
         check_output_call_list = [
diff --git a/setup.py b/setup.py
index 5bda10bc..12216d2a 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
     license="GPLv3+",
     python_requires=">=3.5",
     url="https://github.com/freedomofpress/securdrop-workstation",
-    data_files=[("share/securedrop-workstation-dom0-config", ["config.json.example"]),],
+    data_files=[("share/securedrop-workstation-dom0-config", ["config.json.example"])],
     classifiers=(
         "Development Status :: 3 - Alpha",
         "Programming Language :: Python :: 3",