ipy_leo.mkbutton creates buttons on button bar

IPython/Extensions/ipy_leo.py

@@ -768,4 +768,9 b' def shadow_walk(directory, parent=None, isroot=True):'
             child.initBodyString(body)
             shadow_walk(path, parent=child, isroot=False)
 
+def mkbutton(text, node_to_push):
+    ib = c.frame.getIconBarObject()
+    ib.add(text = text, command = node_to_push.ipush)
+    
+