[Input] Add option of setting units to YamlWriter

interfaces/cython/cantera/_cantera.pxd

@@ -64,6 +64,7 @@ cdef extern from "cantera/base/AnyMap.h" namespace "Cantera":
         CxxAnyValue& operator[](string) except +translate_exception
         cbool hasKey(string)
         string keys_str()
+        void applyUnits()
 
     cdef cppclass CxxAnyValue "Cantera::AnyValue":
         CxxAnyValue()

interfaces/cython/cantera/test/test_kinetics.py

@@ -854,8 +854,9 @@ class TestReaction(utilities.CanteraTest):
         r = ct.ElementaryReaction({'O':1, 'H2':1}, {'H':1, 'OH':1})
         r.rate = ct.Arrhenius(3.87e1, 2.7, 2.6e7)
         data = r.input_data
-        self.assertEqual(data['rate-constant'],
-                         {'A': 3.87e1, 'b': 2.7, 'Ea': 2.6e7})
+        self.assertNear(data['rate-constant']['A'], 3.87e1)
+        self.assertNear(data['rate-constant']['b'], 2.7)
+        self.assertNear(data['rate-constant']['Ea'], 2.6e7)
         terms = data['equation'].split()
         self.assertIn('O', terms)
         self.assertIn('OH', terms)

interfaces/cython/cantera/utils.pyx

@@ -117,6 +117,7 @@ cdef anyvalueToPython(string name, CxxAnyValue& v):
 
 cdef anymapToPython(CxxAnyMap& m):
     py_items = []
+    m.applyUnits()
     for item in m:
         py_items.append((item.second.order(),
                          pystr(item.first),