diff --git a/src/Mod/Part/App/BezierCurvePy.xml b/src/Mod/Part/App/BezierCurvePy.xml
index 7256e64e02..214bc69b20 100644
--- a/src/Mod/Part/App/BezierCurvePy.xml
+++ b/src/Mod/Part/App/BezierCurvePy.xml
@@ -161,9 +161,9 @@ ensures that:
 				<UserDocu>Interpolates a list of constraints.
 				Each constraint is a list of a point and some optional derivatives
 				An optional list of parameters can be passed. It must be of same size as constraint list.
-				Otherwise, a simple uniform parametrisation is used.
+				Otherwise, a simple uniform parametrization is used.
 				Example :
-				bezier.interpolate([[pt1, deriv11, deriv12], [pt2,], [pt3, deriv31]], [0, 0.5, 1.0])</UserDocu>
+				bezier.interpolate([[pt1, deriv11, deriv12], [pt2,], [pt3, deriv31]], [0, 0.4, 1.0])</UserDocu>
 			</Documentation>
 		</Methode>
 	</PythonExport>
diff --git a/src/Mod/Part/App/BezierCurvePyImp.cpp b/src/Mod/Part/App/BezierCurvePyImp.cpp
index 93779a4366..95c902ddfe 100644
--- a/src/Mod/Part/App/BezierCurvePyImp.cpp
+++ b/src/Mod/Part/App/BezierCurvePyImp.cpp
@@ -418,9 +418,7 @@ PyObject* BezierCurvePy::interpolate(PyObject * args)
         int num_poles = 0;
         for (Py::Sequence::iterator it1 = constraints.begin(); it1 != constraints.end(); ++it1) {
             Py::Sequence row(*it1);
-            for (Py::Sequence::iterator it2 = row.begin(); it2 != row.end(); ++it2) {
-                num_poles++;
-            }
+            num_poles += (int)row.size();
         }
         if (num_poles > curve->MaxDegree())
             Standard_Failure::Raise("number of constraints exceeds bezier curve capacity");
@@ -440,7 +438,7 @@ PyObject* BezierCurvePy::interpolate(PyObject * args)
             Py::Sequence row(*it1);
             math_Matrix bezier_eval(1, row.size(), 1, num_poles, 0.0);
             Standard_Integer first_non_zero;
-            Standard_Integer error_code = BSplCLib::EvalBsplineBasis(row.size()-1, num_poles, knots, params(cons_idx), first_non_zero, bezier_eval, Standard_False);
+            BSplCLib::EvalBsplineBasis(row.size()-1, num_poles, knots, params(cons_idx), first_non_zero, bezier_eval, Standard_False);
             int idx2 = 1;
             for (Py::Sequence::iterator it2 = row.begin(); it2 != row.end(); ++it2) {
                 OCCmatrix.SetRow(row_idx, bezier_eval.Row(idx2));