diff --git a/python/dune/perftool/pdelab/localoperator.py b/python/dune/perftool/pdelab/localoperator.py
index 84a65f620d6ec7eb24155c26bdfcc949faeec985..68bf0698c196cc97161e373cb58f2e0bf75bfa9b 100644
--- a/python/dune/perftool/pdelab/localoperator.py
+++ b/python/dune/perftool/pdelab/localoperator.py
@@ -812,7 +812,7 @@ def generate_residual_kernels(form, original_form):
                                              classtag="operator",
                                              )
 
-            operator_kernels[(measure, 'residual')] =  kernel
+            operator_kernels[(measure, 'residual')] = kernel
 
         return operator_kernels
 
@@ -976,7 +976,6 @@ def generate_localoperator_kernels(operator):
     else:
         form = preprocess_form(original_form).preprocessed_form
 
-
     # Reset the generation cache
     from dune.perftool.generation import delete_cache_items
     delete_cache_items()
diff --git a/python/dune/perftool/ufl/visitor.py b/python/dune/perftool/ufl/visitor.py
index e208de92b907519763f4131bcfacfe6bee796192..fb2d779316cc58eba19fd2ebf45c2ffa854aed01 100644
--- a/python/dune/perftool/ufl/visitor.py
+++ b/python/dune/perftool/ufl/visitor.py
@@ -169,13 +169,11 @@ class UFL2LoopyVisitor(ModifiedTerminalTracker):
 
             return self.interface.pymbolic_gridfunction(o, restriction, self.grad)
 
-
     def variable(self, o):
         # Right now only scalar varibables are supported
         assert o.ufl_shape is ()
         return o.expression().value()
 
-
     #
     # Handlers for all indexing related stuff
     #