Some black and coverge fixes

Author: xen0l

aws_gate/decorators.py

@@ -27,7 +27,11 @@ def _plugin_exists_in_path():
 def plugin_required(
     wrapped_function, instance, args, kwargs
 ):  # pylint: disable=unused-argument
-    if not _plugin_exists(PLUGIN_INSTALL_PATH) and not _plugin_exists_in_path() and not platform.system() == "Windows":
+    if (
+        not _plugin_exists(PLUGIN_INSTALL_PATH)
+        and not _plugin_exists_in_path()
+        and not platform.system() == "Windows"
+    ):
         raise OSError("{} not found".format(PLUGIN_NAME))
 
     return wrapped_function(*args, **kwargs)

aws_gate/utils.py

@@ -113,9 +113,9 @@ def get_default_region():
 @contextlib.contextmanager
 def deferred_signals(signal_list=None):
     if signal_list is None:
-        if hasattr(signal, 'SIGHUP'):
+        if hasattr(signal, "SIGHUP"):
             signal_list = [signal.SIGHUP, signal.SIGINT, signal.SIGTERM]
-        else:
+        else:  # pragma: no cover
             signal_list = [signal.SIGINT, signal.SIGTERM]
 
     for deferred_signal in signal_list: