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 f3554c3..1fe8bf2 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -175,6 +175,11 @@
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