Merge pull request #7708 from SylvainCorlay/allow_none

allow_none=False for all trait types but Instance and Type

IPython/html/services/contents/manager.py

@@ -109,7 +109,7 @@ class ContentsManager(LoggingConfigurable):
 
     checkpoints_class = Type(Checkpoints, config=True)
     checkpoints = Instance(Checkpoints, config=True)
-    checkpoints_kwargs = Dict(allow_none=False, config=True)
+    checkpoints_kwargs = Dict(config=True)
 
     def _checkpoints_default(self):
         return self.checkpoints_class(**self.checkpoints_kwargs)

IPython/html/widgets/widget.py

@@ -140,7 +140,7 @@ class Widget(LoggingConfigurable):
     
     _property_lock = Tuple((None, None))
     _send_state_lock = Int(0)
-    _states_to_send = Set(allow_none=False)
+    _states_to_send = Set()
     _display_callbacks = Instance(CallbackDispatcher, ())
     _msg_callbacks = Instance(CallbackDispatcher, ())
     

IPython/html/widgets/widget_box.py

@@ -18,16 +18,16 @@ class Box(DOMWidget):
     # Child widgets in the container.
     # Using a tuple here to force reassignment to update the list.
     # When a proper notifying-list trait exists, that is what should be used here.
-    children = Tuple(sync=True, allow_none=False)
+    children = Tuple(sync=True)
     
     _overflow_values = ['visible', 'hidden', 'scroll', 'auto', 'initial', 'inherit', '']
     overflow_x = CaselessStrEnum(
         values=_overflow_values, 
-        default_value='', allow_none=False, sync=True, help="""Specifies what
+        default_value='', sync=True, help="""Specifies what
         happens to content that is too large for the rendered region.""")
     overflow_y = CaselessStrEnum(
         values=_overflow_values, 
-        default_value='', allow_none=False, sync=True, help="""Specifies what
+        default_value='', sync=True, help="""Specifies what
         happens to content that is too large for the rendered region.""")
 
     box_style = CaselessStrEnum(
@@ -59,10 +59,10 @@ class FlexBox(Box):
     _locations = ['start', 'center', 'end', 'baseline', 'stretch']
     pack = CaselessStrEnum(
         values=_locations, 
-        default_value='start', allow_none=False, sync=True)
+        default_value='start', sync=True)
     align = CaselessStrEnum(
         values=_locations, 
-        default_value='start', allow_none=False, sync=True)
+        default_value='start', sync=True)
 
 
 def VBox(*pargs, **kwargs):

IPython/html/widgets/widget_float.py

@@ -130,8 +130,7 @@ class FloatSlider(_BoundedFloat):
     """
     _view_name = Unicode('FloatSliderView', sync=True)
     orientation = CaselessStrEnum(values=['horizontal', 'vertical'], 
-        default_value='horizontal', 
-        help="Vertical or horizontal.", allow_none=False, sync=True)
+        default_value='horizontal', help="Vertical or horizontal.", sync=True)
     _range = Bool(False, help="Display a range selector", sync=True)
     readout = Bool(True, help="Display the current value of the slider next to it.", sync=True)
     slider_color = Unicode(sync=True)
@@ -285,8 +284,7 @@ class FloatRangeSlider(_BoundedFloatRange):
     """
     _view_name = Unicode('FloatSliderView', sync=True)
     orientation = CaselessStrEnum(values=['horizontal', 'vertical'], 
-        default_value='horizontal', allow_none=False, 
-        help="Vertical or horizontal.", sync=True)
+        default_value='horizontal', help="Vertical or horizontal.", sync=True)
     _range = Bool(True, help="Display a range selector", sync=True)
     readout = Bool(True, help="Display the current value of the slider next to it.", sync=True)
     slider_color = Unicode(sync=True)

IPython/html/widgets/widget_int.py

@@ -84,8 +84,7 @@ class IntSlider(_BoundedInt):
     """Slider widget that represents a int bounded by a minimum and maximum value."""
     _view_name = Unicode('IntSliderView', sync=True)
     orientation = CaselessStrEnum(values=['horizontal', 'vertical'], 
-        default_value='horizontal', allow_none=False, 
-        help="Vertical or horizontal.", sync=True)
+        default_value='horizontal', help="Vertical or horizontal.", sync=True)
     _range = Bool(False, help="Display a range selector", sync=True)
     readout = Bool(True, help="Display the current value of the slider next to it.", sync=True)
     slider_color = Unicode(sync=True)
@@ -196,8 +195,7 @@ class IntRangeSlider(_BoundedIntRange):
     """Slider widget that represents a pair of ints between a minimum and maximum value."""
     _view_name = Unicode('IntSliderView', sync=True)
     orientation = CaselessStrEnum(values=['horizontal', 'vertical'], 
-        default_value='horizontal', allow_none=False, 
-        help="Vertical or horizontal.", sync=True)
+        default_value='horizontal', help="Vertical or horizontal.", sync=True)
     _range = Bool(True, help="Display a range selector", sync=True)
     readout = Bool(True, help="Display the current value of the slider next to it.", sync=True)
     slider_color = Unicode(sync=True)