From: Raymond Hettinger <python@rcn.com>
Date: Mon, 8 Mar 2004 18:22:35 +0000 (+0000)
Subject: SF patch #907403:  Improvements to cStringIO.writelines()
X-Git-Tag: v2.4a1~734
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=3e47f65e28e0350ebf5de83242fdc4099f69a60d;p=python

SF patch #907403:  Improvements to cStringIO.writelines()

The writelines() method now accepts any iterable argument and writes
the lines one at a time rather than using ''.join(lines) followed by
a single write.  Results in considerable memory savings and makes the
method suitable for use with generator expressions.
---

diff --git a/Misc/NEWS b/Misc/NEWS
index f3554c389d..1fe8bf2388 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -175,6 +175,11 @@ Core and builtins
 Extension modules
 -----------------
 
+- cStringIO.writelines() now accepts any iterable argument and writes
+  the lines one at a time rather than joining them and writing once.
+  Made a parallel change to StringIO.writelines().  Saves memory and
+  makes suitable for use with generator expressions.
+
 - time.strftime() now checks that the values in its time tuple argument
   are within the proper boundaries to prevent possible crashes from the
   platform's C library implementation of strftime().  Can possibly