diff --git a/sumpy/toys.py b/sumpy/toys.py
index c71f6107eafb8916228dd30451515a493d8d223f..41117eedb609621a79f65db40dab3d501e66a29f 100644
--- a/sumpy/toys.py
+++ b/sumpy/toys.py
@@ -389,9 +389,10 @@ def _m2l(psource, to_center, to_rscale, to_order, e2e, expn_class, expn_kwargs,
                 src_rscale=np.float64(psource.rscale),
                 **toy_ctx.extra_kernel_kwargs)
 
+        from sumpy.tools import (run_opencl_fft, get_opencl_fft_app,
+            get_native_event)
+
         if toy_ctx.use_fft:
-            from sumpy.tools import (run_opencl_fft, get_opencl_fft_app,
-                get_native_event)
             fft_app = get_opencl_fft_app(queue, (expn_size,),
                 dtype=preprocessed_src_expansions.dtype, inverse=False)
             ifft_app = get_opencl_fft_app(queue, (expn_size,),
diff --git a/test/test_cse.py b/test/test_cse.py
index 68352c9059e8587cd8c2da63a32075ef100841cc..e84548c7c48a5eef731ef077192c16b3c06b4021 100644
--- a/test/test_cse.py
+++ b/test/test_cse.py
@@ -142,8 +142,8 @@ def test_cse_not_possible():
     assert substs == []
     assert reduced == [x + y]
     # issue 6329
-    eq = (meijerg((1, 2), (y, 4), (5,), [], x)
-          + meijerg((1, 3), (y, 4), (5,), [], x))
+    eq = (meijerg((1, 2), (y, 4), (5,), [], x)  # pylint: disable=possibly-used-before-assignment  # noqa: E501
+          + meijerg((1, 3), (y, 4), (5,), [], x))  # pylint: disable=possibly-used-before-assignment  # noqa: E501
     assert cse(eq) == ([], [eq])
 
 # }}}
@@ -168,7 +168,7 @@ def test_subtraction_opt():
     # Make sure subtraction is optimized.
     e = (x - y)*(z - y) + sym.exp((x - y)*(z - y))
     substs, reduced = cse(
-        [e], optimizations=[(cse_opts.sub_pre, cse_opts.sub_post)])
+        [e], optimizations=[(cse_opts.sub_pre, cse_opts.sub_post)])  # pylint: disable=possibly-used-before-assignment  # noqa: E501
     assert substs == [(x0, (x - y)*(y - z))]
     assert reduced == [-x0 + sym.exp(-x0)]
     e = -(x - y)*(z - y) + sym.exp(-(x - y)*(z - y))
@@ -179,8 +179,9 @@ def test_subtraction_opt():
     # issue 4077
     n = -1 + 1/x
     e = n/x/(-n)**2 - 1/n/x
-    assert cse(e, optimizations=[(cse_opts.sub_pre, cse_opts.sub_post)]) == \
-        ([], [0])
+    assert cse(e, optimizations=[
+               (cse_opts.sub_pre, cse_opts.sub_post)]  # pylint: disable=possibly-used-before-assignment  # noqa: E501
+               ) == ([], [0])
 
 # }}}
 
@@ -331,7 +332,7 @@ def test_issue_6169():
     assert cse(r) == ([], [r])
     # and a check that the right thing is done with the new
     # mechanism
-    assert sub_post(sub_pre((-x - y)*z - x - y)) == -z*(x + y) - x - y
+    assert sub_post(sub_pre((-x - y)*z - x - y)) == -z*(x + y) - x - y  # pylint: disable=possibly-used-before-assignment  # noqa: E501
 
 # }}}