Adding transient and update, change to dict for outputs

IPython/core/displaypub.py

@@ -115,10 +115,11 b' class CapturingDisplayPublisher(DisplayPublisher):'
     outputs = List()
 
     def publish(self, data, metadata=None, source=None, *, transient=None, update=False):
-        self.outputs.append((data, metadata))
+        self.outputs.append({'data':data, 'metadata':metadata,
+                             'transient':transient, 'update':update})
 
     def clear_output(self, wait=False):
         super(CapturingDisplayPublisher, self).clear_output(wait)
 
         # empty the list, *do not* reassign a new list
-        del self.outputs[:]
+        self.outputs.clear()

IPython/utils/capture.py

@@ -14,13 +14,16 b' from io import StringIO'
 
 
 class RichOutput(object):
-    def __init__(self, data=None, metadata=None):
+    def __init__(self, data=None, metadata=None, transient=None, update=False):
         self.data = data or {}
         self.metadata = metadata or {}
+        self.transient = transient or {}
+        self.update = update
     
     def display(self):
         from IPython.display import publish_display_data
-        publish_display_data(data=self.data, metadata=self.metadata)
+        publish_display_data(data=self.data, metadata=self.metadata,
+                             transient=self.transient, update=self.update)
     
     def _repr_mime_(self, mime):
         if mime not in self.data:
@@ -104,7 +107,7 b' class CapturedIO(object):'
             for o in c.outputs:
                 display(o)
         """
-        return [ RichOutput(d, md) for d, md in self._outputs ]
+        return [ RichOutput(**kargs) for kargs in self._outputs ]
     
     def show(self):
         """write my output to sys.stdout/err as appropriate"""
@@ -112,8 +115,8 b' class CapturedIO(object):'
         sys.stderr.write(self.stderr)
         sys.stdout.flush()
         sys.stderr.flush()
-        for data, metadata in self._outputs:
-            RichOutput(data, metadata).display()
+        for kargs in self._outputs:
+            RichOutput(**kargs).display()
     
     __call__ = show