[py] linter expects trailing commas

Author: titusfortner

py/selenium/webdriver/chromium/options.py

@@ -144,7 +144,7 @@ def headless(self) -> bool:
         warnings.warn(
             "headless property is deprecated, instead check for '--headless' in arguments",
             DeprecationWarning,
-            stacklevel=2
+            stacklevel=2,
         )
         return "--headless" in self._arguments
 
@@ -161,7 +161,7 @@ def headless(self, value: bool) -> None:
         warnings.warn(
             "headless property is deprecated, instead use add_argument('--headless') or add_argument('--headless=new')",
             DeprecationWarning,
-            stacklevel=2
+            stacklevel=2,
         )
         args = {"--headless"}
         if value is True:

py/selenium/webdriver/firefox/options.py

@@ -109,7 +109,7 @@ def headless(self) -> bool:
         warnings.warn(
             "headless property is deprecated, instead check for '-headless' in arguments",
             DeprecationWarning,
-            stacklevel=2
+            stacklevel=2,
         )
         return "-headless" in self._arguments