Add some more to the Python bindings

python/pyiir.i

@@ -1,6 +1,18 @@
 %module iir
 %include <complex.i>
 
+/*
+ * List conversion
+ *
+ *  SWIG knows how to turn std::vector<T> func() into a function that returns a
+ *  Python list. We do need to tell it about all <T> types with %template,
+ *  however.
+ */
+%include <std_vector.i>
+%template(vectord) std::vector<double>;
+
+
+
 %{
 #include "iir++.h"
 %}