diff --git a/catima.pyx b/catima.pyx
index 5cc9812..17de386 100644
--- a/catima.pyx
+++ b/catima.pyx
@@ -310,6 +310,22 @@ cdef class Config:
             return self.cbase.dedx_straggling
         else:
             self.cbase.dedx_straggling = val
+    def set(self,other):
+        if("z_effective" in other):
+            self.cbase.z_effective = other["z_effective"]
+        if("dedx" in other):
+            self.cbase.dedx = other["dedx"]
+        if("dedx_straggling" in other):
+            self.cbase.dedx_straggling = other["dedx_straggling"]
+	
+    def get(self):
+        res = {}
+        res["z_effective"] = self.cbase.z_effective
+        res["dedx"] = self.cbase.dedx
+        res["dedx_straggling"] = self.cbase.dedx_straggling
+        res["skip"] = self.cbase.skip
+        return res
+
     def print_info(self):
         print("z_effective = %s"%z_eff_type(self.cbase.z_effective))
         print("dedx_straggling = %s"%omega_type(self.cbase.dedx_straggling))
diff --git a/tests/test.py b/tests/test.py
index 0ff7bcf..c96ac69 100644
--- a/tests/test.py
+++ b/tests/test.py
@@ -75,7 +75,7 @@ class TestStructures(unittest.TestCase):
         self.assertAlmostEqual(m2.molar_mass(),18,1)
         self.assertAlmostEqual(m2.density(),1.0,1)
 
-        m3 = catima.get_material(301)
+        m3 = catima.get_material(3001)
         self.assertEqual(m3.ncomponents(),0)
         self.assertAlmostEqual(m3.molar_mass(),0,1)
         self.assertAlmostEqual(m3.density(),0.0,1)
@@ -254,5 +254,15 @@ class TestStructures(unittest.TestCase):
         #self.assertAlmostEqual(catima.da2de(p,water,et[100]),data[2][100],6)
         #self.assertAlmostEqual(catima.da2de(p,water,et[400]),data[2][400],6)
 
+    def test_config(self):
+        c1 = catima.Config()
+        self.assertEqual(c1.z_effective(),catima.z_eff_type.pierce_blann);
+		
+        d = {}
+        d["z_effective"] = catima.z_eff_type.atima14;
+        c1.set(d);
+        self.assertEqual(c1.z_effective(),catima.z_eff_type.atima14);
+		
+		
 if __name__ == "__main__":
     unittest.main()