Fix tests

sumpy/expansion/local.py

@@ -31,6 +31,7 @@ from sumpy.expansion import (
 from sumpy.tools import mi_increment_axis, matvec_toeplitz_upper_triangular
 from pytools import single_valued
 
+
 class LocalExpansionBase(ExpansionBase):
     pass
 

test/test_kernels.py

@@ -820,7 +820,7 @@ def _m2l_translate_simple(tgt_expansion, src_expansion, src_coeff_exprs, src_rsc
     #
     # To get the local expansion coefficients, we take derivatives of
     # the multipole expansion.
-    taker = src_expansion.get_kernel_derivative_taker(dvec, src_rscale, sac=None)
+    taker = src_expansion.kernel.get_derivative_taker(dvec, src_rscale, sac=None)
 
     from sumpy.tools import add_mi