style cleanup

release/scripts/modules/bpy_restrict_state.py

@@ -28,14 +28,17 @@ __all__ = (
 
 import bpy as _bpy
 
+
 class _RestrictContext():
     __slots__ = ()
     _real_data = _bpy.data
     # safe, the pointer never changes
     _real_pref = _bpy.context.user_preferences
+
     @property
     def window_manager(self):
         return self._real_data.window_managers[0]
+
     @property
     def user_preferences(self):
         return self._real_pref
@@ -51,6 +54,7 @@ _data_restrict = _RestrictData()
 
 class RestrictBlend():
     __slots__ = ("context", "data")
+
     def __enter__(self):
         self.data = _bpy.data
         self.context = _bpy.context