Linting

Author: brownbaerchen

pySDC/implementations/datatype_classes/firedrake_mesh.py

@@ -64,8 +64,8 @@ def __rmul__(self, other):
             me = firedrake_mesh(self)
             me.functionspace.assign(other * self.functionspace)
             return me
-        except TypeError:
-            raise DataError("Type error: cannot multiply %s to %s" % (type(other), type(self)))
+        except TypeError as e:
+            raise DataError("Type error: cannot multiply %s to %s" % (type(other), type(self))) from e
 
     def __abs__(self):
         """

pySDC/tests/test_datatypes/test_firedrake_mesh.py

@@ -47,6 +47,7 @@ def test_subtraction(n=3, v1=1, v2=2):
 @pytest.mark.firedrake
 def test_right_multiplication(n=3, v1=1, v2=2):
     from pySDC.implementations.datatype_classes.firedrake_mesh import firedrake_mesh
+    from pySDC.core.errors import DataError
     import numpy as np
     import firedrake as fd
 
@@ -63,6 +64,11 @@ def test_right_multiplication(n=3, v1=1, v2=2):
     assert np.allclose(b.dat._numpy_data, v1 * v2)
     assert np.allclose(a.dat._numpy_data, v1)
 
+    try:
+        'Dat kölsche Dom' * b
+    except DataError:
+        pass
+
 
 @pytest.mark.firedrake
 def test_norm(n=3, v1=-1):