style: format code with Black

This commit fixes the style issues introduced in f835965 according to the output
from Black.

Details: None

main.py

@@ -14,7 +14,7 @@
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.
 """
-#pylint: disable=invalid-name, global-variable-undefined, too-many-branches, too-many-statements, consider-using-in
+# pylint: disable=invalid-name, global-variable-undefined, too-many-branches, too-many-statements, consider-using-in
 
 
 def lego_cmd():