From c1265bd9a65b510c290667f7d9fbbf6e3156f386 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Fri, 31 Jan 2003 16:04:15 +0000
Subject: [PATCH] Make StringIO its own iterator, similar to real files.

(This should also be done to cStringIO.)
---
 Lib/StringIO.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Lib/StringIO.py b/Lib/StringIO.py
index 79ab7e16b32..89dda5e95d1 100644
--- a/Lib/StringIO.py
+++ b/Lib/StringIO.py
@@ -59,7 +59,15 @@ class StringIO:
         self.softspace = 0
 
     def __iter__(self):
-        return iter(self.readline, '')
+        return self
+
+    def next(self):
+        if self.closed:
+            raise StopIteration
+        r = self.readline()
+        if not r:
+            raise StopIteration
+        return r
 
     def close(self):
         """Free the memory buffer.