From 8543f0a119931f35d6048693191f07135f74cdf1 2011-09-19 12:32:37
From: Matthias BUSSONNIER <bussonniermatthias@gmail.com>
Date: 2011-09-19 12:32:37
Subject: [PATCH] cut if history range asked is bigger than history length

	when calling a magic with a range (eg %save filename 1-500) and an history
	smaller than 500
	IPython.core.HistoryManager/_get_range_session
	would crash

---

diff --git a/IPython/core/history.py b/IPython/core/history.py
index 186310f..3a81754 100644
--- a/IPython/core/history.py
+++ b/IPython/core/history.py
@@ -303,7 +303,7 @@ class HistoryManager(Configurable):
         n = len(input_hist)
         if start < 0:
             start += n
-        if not stop:
+        if not stop or (stop > n):
             stop = n
         elif stop < 0:
             stop += n