36741: pycodestyle fixes

Author: soehms

src/sage/features/__init__.py

@@ -403,7 +403,7 @@ def hide(self):
     def unhide(self):
         r"""
         Revert what :meth:`hide` did.
-        
+
         OUTPUT: The number of events a present feature has been hidden.
 
         EXAMPLES:
@@ -423,7 +423,6 @@ def unhide(self):
         return int(num_hidings)
 
 
-
 class FeatureNotPresentError(RuntimeError):
     r"""
     A missing feature error.

src/sage/features/join_feature.py

@@ -153,7 +153,7 @@ def hide(self):
     def unhide(self):
         r"""
         Revert what :meth:`hide` did.
-        
+
         OUTPUT: The number of events a present feature has been hidden.
 
         EXAMPLES::