diff --git a/examples/geometry.py b/examples/geometry.py
index 0c7fb11346270d11b5308ba35c55c69ea3f6f001..a40a000a63333be7771fc6d3fd1cd3ad76c4a957 100644
--- a/examples/geometry.py
+++ b/examples/geometry.py
@@ -32,8 +32,6 @@ import pyopencl.tools as cl_tools
 
 from arraycontext import PyOpenCLArrayContext, thaw
 
-import grudge.op as op
-
 from grudge import DiscretizationCollection, shortcuts
 
 
diff --git a/grudge/op.py b/grudge/op.py
index 401f9e0b3fc3a4a9dc9700f5690a905323f49496..1ab764e08dfc28dd0a3e4a07330fe1fba5bf6200 100644
--- a/grudge/op.py
+++ b/grudge/op.py
@@ -50,8 +50,6 @@ THE SOFTWARE.
 """
 
 
-from numbers import Number
-
 from arraycontext import (
     ArrayContext,
     FirstAxisIsElementsTag,