diff --git a/python/port/mod/matplotlib/pyplot/plot_store.cpp b/python/port/mod/matplotlib/pyplot/plot_store.cpp
index 931aa3c29..e772d407b 100644
--- a/python/port/mod/matplotlib/pyplot/plot_store.cpp
+++ b/python/port/mod/matplotlib/pyplot/plot_store.cpp
@@ -56,15 +56,6 @@ T PlotStore::ListIterator<T>::operator*() {
   return T(m_tuples[m_tupleIndex]);
 };
 
-void checkFloatType(mp_obj_t * elements, size_t nbOfElements) {
-  for (size_t i = 0; i < nbOfElements; i++) {
-    // TODO: we don't take advantage of the fact that we extracted the value at the sametime... Maybe change the way things are done, build the c objects in addItem instead of allocating them on the python heap? Or use float array in python?
-    mp_float_t value;
-    if (!mp_obj_get_float_maybe(elements[i], &value)) {
-      mp_raise_TypeError("argument should be a number");
-    }
-  }
-}
 
 // Dot
 
@@ -81,7 +72,6 @@ PlotStore::Dot::Dot(mp_obj_t tuple) {
 void PlotStore::addDot(mp_obj_t x, mp_obj_t y, KDColor c) {
   mp_obj_t color = mp_obj_new_int(c);
   mp_obj_t items[3] = {x, y, color};
-  checkFloatType(items, 2);
   mp_obj_t tuple = mp_obj_new_tuple(3, items);
   mp_obj_list_append(m_dots, tuple);
 }
@@ -104,7 +94,6 @@ PlotStore::Segment::Segment(mp_obj_t tuple) {
 void PlotStore::addSegment(mp_obj_t xStart, mp_obj_t yStart, mp_obj_t xEnd, mp_obj_t yEnd, KDColor c, mp_obj_t arrowWidth) {
   mp_obj_t color = mp_obj_new_int(c);
   mp_obj_t items[6] = {xStart, yStart, xEnd, yEnd, arrowWidth, color};
-  checkFloatType(items, 5);
   mp_obj_t tuple = mp_obj_new_tuple(6, items);
   mp_obj_list_append(m_segments, tuple);
 }
@@ -126,7 +115,6 @@ PlotStore::Rect::Rect(mp_obj_t tuple) {
 void PlotStore::addRect(mp_obj_t left, mp_obj_t right, mp_obj_t top, mp_obj_t bottom, KDColor c) {
   mp_obj_t color = mp_obj_new_int(c);
   mp_obj_t items[5] = {left, right, top, bottom, color};
-  checkFloatType(items, 4);
   mp_obj_t tuple = mp_obj_new_tuple(5, items);
   mp_obj_list_append(m_rects, tuple);
 }
@@ -145,7 +133,6 @@ PlotStore::Label::Label(mp_obj_t tuple) {
 
 void PlotStore::addLabel(mp_obj_t x, mp_obj_t y, mp_obj_t string) {
   mp_obj_t items[3] = {x, y, string};
-  checkFloatType(items, 2);
   if (!mp_obj_is_str(string)) {
     mp_raise_TypeError("argument should be a string");
   }