[Python] Fix setting composition using arrays with singleton dimensions

interfaces/cython/cantera/test/test_thermo.py

@@ -112,6 +112,14 @@ class TestThermoPhase(utilities.CanteraTest):
 
         self.assertEqual(list(X), list(Y))
 
+    def test_setComposition_singleton(self):
+        X = np.zeros((1,self.phase.n_species,1))
+        X[0,2,0] = 1.0
+        self.phase.X = X
+        Y = self.phase.Y
+
+        self.assertEqual(list(X[0,:,0]), list(Y))
+
     def test_setCompositionString(self):
         self.phase.X = 'H2:1.0, O2:1.0'
         X = self.phase.X

interfaces/cython/cantera/thermo.pyx

@@ -465,6 +465,7 @@ cdef class ThermoPhase(_SolutionBase):
     cdef void _setArray1(self, thermoMethod1d method, values) except *:
         cdef np.ndarray[np.double_t, ndim=1] data
 
+        values = np.squeeze(values)
         if len(values) == self.n_species:
             data = np.ascontiguousarray(values, dtype=np.double)
         elif len(values) == len(self._selected_species):