From 2852fb6791c2d1ec8ef2f8f4a2a2099193ccf7fb 2011-05-11 23:13:32
From: MinRK <benjaminrk@gmail.com>
Date: 2011-05-11 23:13:32
Subject: [PATCH] in irunner, don't send last newline if child is gone

fixes an issue where irunner could send last newline after child exits, raising an OSError

---

diff --git a/IPython/lib/irunner.py b/IPython/lib/irunner.py
index 5c97cfa..c132f58 100755
--- a/IPython/lib/irunner.py
+++ b/IPython/lib/irunner.py
@@ -263,7 +263,8 @@ class InteractiveRunner(object):
 
         # Leave the child ready for more input later on, otherwise select just
         # hangs on the second invocation.
-        c.send('\n')
+        if c.isalive():
+            c.send('\n')
         
         # Return any requested output
         if get_output: