changed .A to .toarray for csr_matrices

Signed-off-by: Nick Papior <[email protected]>

Author: zerothi

src/sisl/physics/tests/test_physics_sparse.py

@@ -31,7 +31,7 @@ def run_Pk_hermitian_tests(M):
     for k in ([0, 0, 0], [0.1, 0.2, 0.3]):
         Mk = M.Pk(k=k, format="array")
         assert np.allclose(Mk, Mk.T.conj())
-        Mk = M.Pk(k=k).A
+        Mk = M.Pk(k=k).toarray()
         assert np.allclose(Mk, Mk.T.conj())