diff --git a/etg/colour.py b/etg/colour.py
index d5be436b..10d0a455 100644
--- a/etg/colour.py
+++ b/etg/colour.py
@@ -196,7 +196,7 @@ def run():
                 return 1;
             if (PyBytes_Check(sipPy) || PyUnicode_Check(sipPy))
                 return 1;
-            if (PySequence_Check(sipPy)) {
+            if (PyTuple_Check(sipPy) || PyList_Check(sipPy)) {
                 size_t len = PySequence_Size(sipPy);
                 if (len != 3 && len != 4)
                     return 0;
@@ -212,6 +212,7 @@ def run():
             }
             return 0;
         }
+
         // otherwise do the conversion
         // is it None?
         if (sipPy == Py_None) {
diff --git a/etg/gdicmn.py b/etg/gdicmn.py
index 48ad903e..00c8e63e 100644
--- a/etg/gdicmn.py
+++ b/etg/gdicmn.py
@@ -91,8 +91,10 @@ def run():
 
     c.addItem(etgtools.WigCode("""\
         wxPoint operator+(const wxPoint& other);
+        wxPoint operator+(const wxSize& other);
         wxPoint operator-();
         wxPoint operator-(const wxPoint& other);
+        wxPoint operator-(const wxSize& other);
         wxPoint operator*(int i);
         wxPoint operator/(int i);
         """))
diff --git a/etgtools/tweaker_tools.py b/etgtools/tweaker_tools.py
index d4797ab5..ed83f6f9 100644
--- a/etgtools/tweaker_tools.py
+++ b/etgtools/tweaker_tools.py
@@ -626,7 +626,7 @@ def convertTwoIntegersTemplate(CLASS):
        if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS))
            return 1;
 
-       if (PySequence_Check(sipPy) && PySequence_Size(sipPy) == 2) {{
+       if ((PyTuple_Check(sipPy) || PyList_Check(sipPy)) && PySequence_Size(sipPy) == 2) {{
            int rval = 1;
            PyObject* o1 = PySequence_ITEM(sipPy, 0);
            PyObject* o2 = PySequence_ITEM(sipPy, 1);
@@ -666,7 +666,7 @@ def convertFourIntegersTemplate(CLASS):
         if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS))
             return 1;
 
-        if (PySequence_Check(sipPy) && PySequence_Size(sipPy) == 4) {{
+        if ((PyTuple_Check(sipPy) || PyList_Check(sipPy)) && PySequence_Size(sipPy) == 4) {{
             int rval = 1;
             PyObject* o1 = PySequence_ITEM(sipPy, 0);
             PyObject* o2 = PySequence_ITEM(sipPy, 1);
@@ -713,7 +713,7 @@ def convertTwoDoublesTemplate(CLASS):
         if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS))
             return 1;
 
-        if (PySequence_Check(sipPy) && PySequence_Size(sipPy) == 2) {{
+        if ((PyTuple_Check(sipPy) || PyList_Check(sipPy)) && PySequence_Size(sipPy) == 2) {{
             int rval = 1;
             PyObject* o1 = PySequence_ITEM(sipPy, 0);
             PyObject* o2 = PySequence_ITEM(sipPy, 1);
@@ -753,7 +753,7 @@ def convertFourDoublesTemplate(CLASS):
         if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS))
             return 1;
 
-        if (PySequence_Check(sipPy) && PySequence_Size(sipPy) == 4) {{
+        if ((PyTuple_Check(sipPy) || PyList_Check(sipPy)) && PySequence_Size(sipPy) == 4) {{
             int rval = 1;
             PyObject* o1 = PySequence_ITEM(sipPy, 0);
             PyObject* o2 = PySequence_ITEM(sipPy, 1);
diff --git a/unittests/test_colour.py b/unittests/test_colour.py
index 5ad7bd87..9a7995da 100644
--- a/unittests/test_colour.py
+++ b/unittests/test_colour.py
@@ -34,6 +34,14 @@ class Colour(wtc.WidgetTestCase):
         c1 = wx.Colour(1,2,3,4)
         p = c1.GetPixel()
 
+    def test_converters(self):
+        # Ensure that comparing different types don't accidentally work
+        # because of making the classes look like sequences
+        c = wx.Colour(1,2,3,4)
+        r = wx.Rect(1,2,3,4)
+        self.assertFalse( c == r )
+        self.assertFalse( r == c )
+
 
     if hasattr(wx, 'testColourTypeMap'):
         def test_ColourTypemaps(self):
diff --git a/unittests/test_gdicmn.py b/unittests/test_gdicmn.py
index 71847797..daa3eaf7 100644
--- a/unittests/test_gdicmn.py
+++ b/unittests/test_gdicmn.py
@@ -117,6 +117,14 @@ class Point(unittest.TestCase):
         self.assertEqual(p6, (-4,-6))
 
 
+    def test_converters(self):
+        # Ensure that comparing different types don't accidentally work
+        # because of making the classes look like sequences
+        p = wx.Point(10,20)
+        s = wx.Size(10,20)
+        self.assertFalse( p == s )
+        self.assertFalse( s == p )
+
 
 #---------------------------------------------------------------------------