updated complete interface

functions.py

@@ -30,12 +30,16 @@ class Completion(object):
         dot = '.' if self.needs_dot else ''
         return dot + self.name.names[-1][self.like_name_length:]
 
+    @property
+    def word(self):
+        return str(self.name.names[-1])
+
     @property
     def description(self):
         return str(self.name.parent())
 
     @property
-    def help(self):
+    def doc(self):
         try:
             return str(self.name.parent().docstr)
         except AttributeError:
@@ -65,9 +69,6 @@ class Completion(object):
 
         return ''
 
-    def __str__(self):
-        return self.name.names[-1]
-
 
 class Definition(object):
     def __init__(self, definition):