Merge pull request #175 from minrk/session=0

default to session=0, start=0

Author: takluyver

ipykernel/ipkernel.py

@@ -280,7 +280,7 @@ def do_inspect(self, code, cursor_pos, detail_level=0):
 
         return reply_content
 
-    def do_history(self, hist_access_type, output, raw, session=None, start=None,
+    def do_history(self, hist_access_type, output, raw, session=0, start=0,
                    stop=None, n=None, pattern=None, unique=False):
         if hist_access_type == 'tail':
             hist = self.shell.history_manager.get_tail(n, raw=raw, output=output,