core: fix attribute casts

pyproject.toml

@@ -35,5 +35,6 @@ test = [
 [tool.pytest.ini_options]
 filterwarnings = [
   'ignore:the imp module is deprecated:DeprecationWarning',
-  'ignore::DeprecationWarning:usadel1'
+  'ignore::DeprecationWarning:usadel1',
+  'ignore::usadel1.nonlinearsolver.BroydenWarning'
 ]

usadelndsoc/core.py

@@ -30,16 +30,16 @@ def _action_property(name, freeze=True):
 
 class Core:
     def __init__(self, Lx=1, Ly=1, alpha=0, D=1, nx=1, ny=1):
-        self._Lx = Lx
-        self._Ly = Ly
-        self._alpha = alpha
-        self._D = D
+        self._Lx = float(Lx)
+        self._Ly = float(Ly)
+        self._alpha = complex(alpha)
+        self._D = complex(D)
         self.set_shape(nx, ny)
 
     def set_shape(self, nx=1, ny=1):
         self._frozen = False
         self._shape = (nx, ny)
-        self._omega = 0j
+        self._omega = complex(0)
         self._mask = np.zeros((nx, ny), dtype=np.uint8)
         self._U = np.zeros((nx, ny, 4, 4, 4), dtype=complex)
         self._Omega = np.zeros((nx, ny, 4, 4), dtype=complex)