set readout=True as default on SliderWidgets

IPython/html/widgets/tests/test_interaction.py

@@ -133,6 +133,7 b' def test_single_value_float():'
             min= -a if a > 0 else 3*a,
             max= 3*a if a > 0 else -a,
             step=0.1,
+            readout=True,
         )
 
 def test_single_value_int():
@@ -147,6 +148,7 b' def test_single_value_int():'
             min= -a if a > 0 else 3*a,
             max= 3*a if a > 0 else -a,
             step=1,
+            readout=True,
         )
 
 def test_list_tuple_2_int():
@@ -162,6 +164,7 b' def test_list_tuple_2_int():'
             min=min,
             max=max,
             step=1,
+            readout=True,
         )
         check_widgets(c, tup=d, lis=d)
 
@@ -178,6 +181,7 b' def test_list_tuple_3_int():'
             min=min,
             max=max,
             step=step,
+            readout=True,
         )
         check_widgets(c, tup=d, lis=d)
 
@@ -194,6 +198,7 b' def test_list_tuple_2_float():'
             min=min,
             max=max,
             step=.1,
+            readout=True,
         )
         check_widgets(c, tup=d, lis=d)
 
@@ -212,6 +217,7 b' def test_list_tuple_3_float():'
             min=min,
             max=max,
             step=step,
+            readout=True,
         )
         check_widgets(c, tup=d, lis=d)
 

IPython/html/widgets/widget_float.py

@@ -53,7 +53,7 b' class FloatSliderWidget(_BoundedFloatWidget):'
     _view_name = Unicode('FloatSliderView', sync=True)
     orientation = Enum([u'horizontal', u'vertical'], u'horizontal', 
         help="Vertical or horizontal.", sync=True)
-    readout = Bool(False, help="Display the current value of the slider next to it.", sync=True)
+    readout = Bool(True, help="Display the current value of the slider next to it.", sync=True)
 
 
 class FloatProgressWidget(_BoundedFloatWidget):

IPython/html/widgets/widget_int.py

@@ -53,7 +53,7 b' class IntSliderWidget(_BoundedIntWidget):'
     _view_name = Unicode('IntSliderView', sync=True)
     orientation = Enum([u'horizontal', u'vertical'], u'horizontal', 
         help="Vertical or horizontal.", sync=True)
-    readout = Bool(False, help="Display the current value of the slider next to it.", sync=True)
+    readout = Bool(True, help="Display the current value of the slider next to it.", sync=True)
 
 
 class IntProgressWidget(_BoundedIntWidget):