diff --git a/examples/widgets/bar/lv_example_bar_6.py b/examples/widgets/bar/lv_example_bar_6.py
index fef9e8d36..6c7793afe 100644
--- a/examples/widgets/bar/lv_example_bar_6.py
+++ b/examples/widgets/bar/lv_example_bar_6.py
@@ -2,7 +2,7 @@ def set_value(bar, v):
     bar.set_value(v, lv.ANIM.OFF)
 
 def event_cb(e):
-    dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+    dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
     if dsc.part != lv.PART.INDICATOR:
         return
 
diff --git a/examples/widgets/bar/test.py b/examples/widgets/bar/test.py
index 143afe1d2..4ff17fb44 100644
--- a/examples/widgets/bar/test.py
+++ b/examples/widgets/bar/test.py
@@ -5,7 +5,7 @@ def set_value(bar, v):
     bar.set_value(v, lv.ANIM.OFF)
 
 def event_cb(e):
-    dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+    dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
     if dsc.part != lv.PART.INDICATOR:
         return
 
diff --git a/examples/widgets/btnmatrix/lv_example_btnmatrix_2.py b/examples/widgets/btnmatrix/lv_example_btnmatrix_2.py
index d5dcee761..8adb570b0 100644
--- a/examples/widgets/btnmatrix/lv_example_btnmatrix_2.py
+++ b/examples/widgets/btnmatrix/lv_example_btnmatrix_2.py
@@ -22,7 +22,7 @@ def event_cb(e):
     code = e.get_code()
     obj = e.get_target()
     if code == lv.EVENT.DRAW_PART_BEGIN:
-        dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+        dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
         # Change the draw descriptor the 2nd button
         if dsc.id == 1:
             dsc.rect_dsc.radius = 0;
@@ -50,7 +50,7 @@ def event_cb(e):
             dsc.label_dsc.opa = lv.OPA.TRANSP  # Hide the text if any
 
     if code == lv.EVENT.DRAW_PART_END:
-        dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+        dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
 
         # Add custom content to the 4th button when the button itself was drawn
         if dsc.id == 3:
diff --git a/examples/widgets/chart/lv_example_chart_2.py b/examples/widgets/chart/lv_example_chart_2.py
index 1cd504ddc..e769d14e5 100644
--- a/examples/widgets/chart/lv_example_chart_2.py
+++ b/examples/widgets/chart/lv_example_chart_2.py
@@ -3,7 +3,7 @@ def draw_event_cb(e):
     obj = lv.obj.__cast__(e.get_target())
 
     # Add the faded area before the lines are drawn
-    dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+    dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
     if dsc.part != lv.PART.ITEMS:
         return
     if not dsc.p1 or not dsc.p2:
diff --git a/examples/widgets/chart/lv_example_chart_3.py b/examples/widgets/chart/lv_example_chart_3.py
index 3d14bd037..a0222ae6f 100644
--- a/examples/widgets/chart/lv_example_chart_3.py
+++ b/examples/widgets/chart/lv_example_chart_3.py
@@ -1,6 +1,6 @@
 def draw_event_cb(e):
 
-    dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+    dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
     if dsc.part == lv.PART.TICKS and dsc.id == lv.chart.AXIS.PRIMARY_X: 
         month = ["Jan", "Febr", "March", "Apr", "May", "Jun", "July", "Aug", "Sept", "Oct", "Nov", "Dec"]
         # dsc.text is defined char text[16], I must therefore convert the Python string to a byte_array
diff --git a/examples/widgets/chart/lv_example_chart_4.py b/examples/widgets/chart/lv_example_chart_4.py
index 981f65feb..906c35a9a 100644
--- a/examples/widgets/chart/lv_example_chart_4.py
+++ b/examples/widgets/chart/lv_example_chart_4.py
@@ -35,7 +35,7 @@ def event_cb(e):
             a.y1 = coords.y1 + p.y - 30
             a.y2 = coords.y1 + p.y - 10
             
-            clip_area = lv.area_t.cast(e.get_param())
+            clip_area = lv.area_t.__cast__(e.get_param())
             lv.draw_rect(a, clip_area, draw_rect_dsc)
             
     elif code == lv.EVENT.RELEASED:
diff --git a/examples/widgets/chart/lv_example_chart_6.py b/examples/widgets/chart/lv_example_chart_6.py
index 23d4e4453..6eb89dc52 100644
--- a/examples/widgets/chart/lv_example_chart_6.py
+++ b/examples/widgets/chart/lv_example_chart_6.py
@@ -49,7 +49,7 @@ class ExampleChart_6():
                 
         elif code == lv.EVENT.DRAW_PART_END:
             # print("EVENT.DRAW_PART_END")
-            dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+            dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
             # if dsc.p1 and dsc.p2:
                 # print("p1, p2", dsc.p1,dsc.p2)
                 # print("p1.y, p2.y", dsc.p1.y, dsc.p2.y)
diff --git a/examples/widgets/slider/lv_example_slider_3.py b/examples/widgets/slider/lv_example_slider_3.py
index 792d72a01..550714ddc 100644
--- a/examples/widgets/slider/lv_example_slider_3.py
+++ b/examples/widgets/slider/lv_example_slider_3.py
@@ -8,7 +8,7 @@ def slider_event_cb(e):
         
     elif code == lv.EVENT.DRAW_PART_END:
         # print("DRAW_PART_END")
-        dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+        dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
         # print(dsc)
         if dsc.part == lv.PART.INDICATOR:
             label_text = "{:d} - {:d}".format(obj.get_left_value(),slider.get_value())
diff --git a/examples/widgets/table/lv_example_table_1.py b/examples/widgets/table/lv_example_table_1.py
index e035168cd..3fe45fbec 100644
--- a/examples/widgets/table/lv_example_table_1.py
+++ b/examples/widgets/table/lv_example_table_1.py
@@ -1,6 +1,6 @@
 def draw_part_event_cb(e):
     obj = lv.table.__cast__(e.get_target())
-    dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+    dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
     # If the cells are drawn../
     if dsc.part == lv.PART.ITEMS:
         row = dsc.id //  obj.get_col_cnt()
diff --git a/examples/widgets/table/lv_example_table_2.py b/examples/widgets/table/lv_example_table_2.py
index 4eb6abe99..5b60befe0 100644
--- a/examples/widgets/table/lv_example_table_2.py
+++ b/examples/widgets/table/lv_example_table_2.py
@@ -5,7 +5,7 @@ ITEM_CNT = 200
 
 def draw_event_cb(e):
     obj = lv.table.__cast__(e.get_target())
-    dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
+    dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
     # If the cells are drawn...
     if dsc.part == lv.PART.ITEMS:
         chk = obj.has_cell_ctrl(dsc.id, 0, lv.table.CELL_CTRL.CUSTOM_1)