From 7fe4c5763f17a01fa6cf112560974bfe8f39891e 2011-04-08 00:02:18
From: MinRK <benjaminrk@gmail.com>
Date: 2011-04-08 00:02:18
Subject: [PATCH] let add_history take strings for pyreadline <= 1.5

---

diff --git a/IPython/utils/rlineimpl.py b/IPython/utils/rlineimpl.py
index 25cae5c..042b560 100644
--- a/IPython/utils/rlineimpl.py
+++ b/IPython/utils/rlineimpl.py
@@ -21,9 +21,21 @@ except ImportError:
         from pyreadline import *
         import pyreadline as _rl
         have_readline = True
-    except ImportError:    
+    except ImportError:
         have_readline = False
 
+if have_readline and hasattr(_rl, 'rlmain'):
+    # patch add_history to allow for strings in pyreadline <= 1.5:
+    # fix copied from pyreadline 1.6
+    import pyreadline
+    if pyreadline.release.version <= '1.5':
+        def add_history(line):
+            """add a line to the history buffer."""
+            from pyreadline import lineobj
+            if not isinstance(line, lineobj.TextLine):
+                line = lineobj.TextLine(line)
+            return _rl.add_history(line)
+
 if sys.platform == 'win32' and have_readline:
     try:
         _outputfile=_rl.GetOutputFile()