diff --git a/examples/to_firedrake.py b/examples/to_firedrake.py
index 9132d0e3..a115924c 100644
--- a/examples/to_firedrake.py
+++ b/examples/to_firedrake.py
@@ -30,7 +30,7 @@
 
 # Nb: Some of the initial setup was adapted from meshmode/examplse/simple-dg.py
 #     written by Andreas Klockner:
-#    https://gitlab.tiker.net/inducer/meshmode/-/blob/7826fa5e13854bf1dae425b4226865acc10ee01f/examples/simple-dg.py  # noqa : E501
+#    https://gitlab.tiker.net/inducer/meshmode/-/blob/7826fa5e13854bf1dae425b4226865acc10ee01f/examples/simple-dg.py
 def main():
     # If can't import firedrake, do nothing
     #
diff --git a/meshmode/discretization/visualization.py b/meshmode/discretization/visualization.py
index ccd49c04..cc29c559 100644
--- a/meshmode/discretization/visualization.py
+++ b/meshmode/discretization/visualization.py
@@ -661,7 +661,7 @@ def show_scalar_in_mayavi(self, field, **kwargs):
 
             args = (*nodes, field)
 
-            # https://docs.enthought.com/mayavi/mayavi/auto/example_plotting_many_lines.html  # noqa: E501
+            # https://docs.enthought.com/mayavi/mayavi/auto/example_plotting_many_lines.html
             src = mlab.pipeline.scalar_scatter(*args)
 
             src.mlab_source.dataset.lines = vis_connectivity.reshape(-1, 2)
diff --git a/meshmode/interop/firedrake/mesh.py b/meshmode/interop/firedrake/mesh.py
index ac9f1295..91a414fa 100644
--- a/meshmode/interop/firedrake/mesh.py
+++ b/meshmode/interop/firedrake/mesh.py
@@ -258,7 +258,7 @@ def _get_firedrake_facial_adjacency_groups(fdrake_mesh_topology,
     # (ordered lexicographically by the vertex excluded from the face,
     #  search for "local facet number" in the following paper for
     #  a reference on this...
-    # https://spiral.imperial.ac.uk/bitstream/10044/1/28819/2/mlange-firedrake-dmplex-accepted.pdf  # noqa : E501
+    # https://spiral.imperial.ac.uk/bitstream/10044/1/28819/2/mlange-firedrake-dmplex-accepted.pdf
     # )
     # and meshmode's facet ordering: obtained from a simplex element group
     import modepy as mp
@@ -476,7 +476,7 @@ def _get_firedrake_orientations(fdrake_mesh, unflipped_group, vertices,
         # In this case we have a 2-surface embedded in 3-space.
         # In this case, we assume the user has called
         # :func:`firedrake.mesh.MeshGeometry.init_cell_orientations`, see
-        # https://www.firedrakeproject.org/variational-problems.html#ensuring-consistent-cell-orientations  # noqa : E501
+        # https://www.firedrakeproject.org/variational-problems.html#ensuring-consistent-cell-orientations
         # for a tutorial on how these are usually initialized.
         #
         # Unfortunately, *init_cell_orientations* is currently only implemented
diff --git a/meshmode/mesh/generation.py b/meshmode/mesh/generation.py
index c641b3a7..a7f0ec9d 100644
--- a/meshmode/mesh/generation.py
+++ b/meshmode/mesh/generation.py
@@ -895,7 +895,7 @@ def idx(i: int, j: int) -> int:
 
     # {{{ evaluate on torus
 
-    # https://web.archive.org/web/20160410151837/https://www.math.hmc.edu/~gu/curves_and_surfaces/surfaces/torus.html  # noqa: E501
+    # https://web.archive.org/web/20160410151837/https://www.math.hmc.edu/~gu/curves_and_surfaces/surfaces/torus.html
 
     # create new vertices without the endpoints
     u = np.linspace(0.0, 2.0 * np.pi, n_major, endpoint=False)
diff --git a/meshmode/mesh/tools.py b/meshmode/mesh/tools.py
index 22eb075a..1c36e2a2 100644
--- a/meshmode/mesh/tools.py
+++ b/meshmode/mesh/tools.py
@@ -90,8 +90,8 @@ def rand_rotation_matrix(ambient_dim, deflection=1.0, randnums=None, rng=None):
     :arg randnums: 3 random numbers in the range [0, 1]. If *None*, they will be
         auto-generated.
     """
-    # from https://www.realtimerendering.com/resources/GraphicsGems/gemsiii/rand_rotation.c  # noqa: E501
-    # from https://blog.lostinmyterminal.com/python/2015/05/12/random-rotation-matrix.html  # noqa: E501
+    # from https://www.realtimerendering.com/resources/GraphicsGems/gemsiii/rand_rotation.c
+    # from https://blog.lostinmyterminal.com/python/2015/05/12/random-rotation-matrix.html
 
     if ambient_dim != 3:
         raise NotImplementedError(f"ambient_dim: {ambient_dim}")
diff --git a/test/test_firedrake_interop.py b/test/test_firedrake_interop.py
index 02250422..83b0d9e8 100644
--- a/test/test_firedrake_interop.py
+++ b/test/test_firedrake_interop.py
@@ -158,7 +158,7 @@ def check_consistency(fdrake_fspace, discr, group_nr=0):
 
     # Ensure that the vertex sets are identical up to reordering
     # Nb: I got help on this from stack overflow:
-    # https://stackoverflow.com/questions/38277143/sort-2d-numpy-array-lexicographically  # noqa: E501
+    # https://stackoverflow.com/questions/38277143/sort-2d-numpy-array-lexicographically
     lex_sorted_mm_verts = meshmode_verts[:, np.lexsort(meshmode_verts)]
     lex_sorted_fdrake_verts = fdrake_verts[np.lexsort(fdrake_verts.T)]
     np.testing.assert_allclose(lex_sorted_mm_verts, lex_sorted_fdrake_verts.T,
@@ -278,7 +278,7 @@ def test_from_boundary_consistency(actx_factory: ArrayContextFactory,
     # the boundary are identical to the resultant meshes' vertices up to
     # reordering
     # Nb: I got help on this from stack overflow:
-    # https://stackoverflow.com/questions/38277143/sort-2d-numpy-array-lexicographically  # noqa: E501
+    # https://stackoverflow.com/questions/38277143/sort-2d-numpy-array-lexicographically
     lex_sorted_mm_verts = meshmode_verts[:, np.lexsort(meshmode_verts)]
     lex_sorted_fdrake_verts = fdrake_verts[np.lexsort(fdrake_verts.T)]
     np.testing.assert_allclose(lex_sorted_mm_verts, lex_sorted_fdrake_verts.T,