[Base] break out thermo/kinetics manager types to Python

interfaces/cython/cantera/base.pyx

@@ -101,6 +101,21 @@ cdef class _SolutionBase:
         def __set__(self, name):
             self.base.setName(stringify(name))
 
+    property composite:
+        """
+        Returns tuple of thermo/kinetics/transport models associated with
+        this SolutionBase object.
+        """
+        def __get__(self):
+            thermo = None if self.thermo == NULL \
+                else pystr(self.thermo.type())
+            kinetics = None if self.kinetics == NULL \
+                else pystr(self.kinetics.kineticsType())
+            transport = None if self.transport == NULL \
+                else pystr(self.transport.transportType())
+
+            return thermo, kinetics, transport
+
     def _init_yaml(self, infile, phaseid, phases, source):
         """
         Instantiate a set of new Cantera C++ objects from a YAML

interfaces/cython/cantera/kinetics.pyx

@@ -31,6 +31,13 @@ cdef class Kinetics(_SolutionBase):
         kwargs['base_type'] = base_type
         super().__init__(*args, **kwargs)
 
+    property kinetics_model:
+        """
+        Return type of kinetics.
+        """
+        def __get__(self):
+            return pystr(self.kinetics.kineticsType())
+
     property n_total_species:
         """
         Total number of species in all phases participating in the kinetics

interfaces/cython/cantera/test/test_thermo.py

@@ -13,10 +13,19 @@ class TestThermoPhase(utilities.CanteraTest):
     def setUp(self):
         self.phase = ct.Solution('h2o2.xml')
 
-    def test_cpp_attributes(self):
+    def test_base_attributes(self):
         self.assertTrue(isinstance(self.phase.type, str))
         self.assertTrue(self.phase.type=='Solution')
         self.assertTrue(isinstance(self.phase.name, str))
+        self.assertTrue(isinstance(self.phase.thermo_model, str))
+        self.assertTrue(isinstance(self.phase.kinetics_model, str))
+        self.assertTrue(isinstance(self.phase.transport_model, str))
+        self.assertTrue(isinstance(self.phase.composite, tuple))
+        self.assertTrue(len(self.phase.composite)==3)
+        self.assertTrue(
+            self.phase.composite == (self.phase.thermo_model,
+                                     self.phase.kinetics_model,
+                                     self.phase.transport_model))
         self.phase.name = 'spam'
         self.assertTrue(self.phase.name=='spam')
         with self.assertRaises(AttributeError):

interfaces/cython/cantera/thermo.pyx

@@ -271,6 +271,13 @@ cdef class ThermoPhase(_SolutionBase):
             self.thermo_basis = mass_basis
         self._references = weakref.WeakKeyDictionary()
 
+    property thermo_model:
+        """
+        Return thermodynamic model describing phase.
+        """
+        def __get__(self):
+            return pystr(self.thermo.type())
+
     def report(self, show_thermo=True, float threshold=1e-14):
         """
         Generate a report describing the thermodynamic state of this phase. To