commit bf5ff765970a15255a06e4a4ee7f18b5745079ad
author Benjamin Peterson <benjamin@python.org> Sun Dec 13 19:25:34 2009 +0000
committer Benjamin Peterson <benjamin@python.org> Sun Dec 13 19:25:34 2009 +0000
tree ac106a4885c12c27a624f296ee0a08d5d6b195c4
parent 229663775dd6c869e8daceea6d92af638afa520f

Merged revisions 76805 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76805 | benjamin.peterson | 2009-12-13 13:19:07 -0600 (Sun, 13 Dec 2009) | 7 lines

  accept None as the same as having passed no argument in file types #7349

  This is for consistency with imitation file objects like StringIO and BytesIO.

  This commit also adds a few tests, where they were lacking for concerned
  methods.
........

Modules/_io/textio.c

diff --git a/Modules/_io/textio.c b/Modules/_io/textio.c
index 333c93f..ba28d59 100644
--- a/Modules/_io/textio.c
+++ b/Modules/_io/textio.c
@@ -1479,7 +1479,7 @@
 
     CHECK_INITIALIZED(self);
 
-    if (!PyArg_ParseTuple(args, "|n:read", &n))
+    if (!PyArg_ParseTuple(args, "|O&:read", &_PyIO_ConvertSsize_t, &n))
         return NULL;
 
     CHECK_CLOSED(self);