run the code formatter over all

owrx/feature.py

@@ -152,7 +152,14 @@ class FeatureDetector(object):
         # prevent X11 programs from opening windows if called from a GUI shell
         env.pop("DISPLAY", None)
         try:
-            process = subprocess.Popen(cmd, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, cwd=tmp_dir, env=env)
+            process = subprocess.Popen(
+                cmd,
+                stdin=subprocess.DEVNULL,
+                stdout=subprocess.DEVNULL,
+                stderr=subprocess.DEVNULL,
+                cwd=tmp_dir,
+                env=env,
+            )
             rc = process.wait()
             if expected_result is None:
                 return rc != 32512
@@ -214,7 +221,6 @@ class FeatureDetector(object):
         """
         return self.command_is_runnable("perseustest -h")
 
-
     def has_digiham(self):
         """
         To use digital voice modes, the digiham package is required. You can find the package and installation
@@ -547,4 +553,4 @@ class FeatureDetector(object):
 
         You can find more information [here](https://github.com/jketterl/eb200_connector).
         """
-        return self._check_connector("eb200_connector")
+        return self._check_connector("eb200_connector")