Bug #1511381: codec_getstreamcodec() in codec.c is corrected to

omit a default "error" argument for NULL pointer.  This allows
the parser to take a codec from cjkcodecs again.
(Reported by Taewook Kang and reviewed by Walter Doerwald)

Misc/NEWS

@@ -12,6 +12,9 @@ What's New in Python 2.5 beta 2?
 Core and builtins
 -----------------
 
+- Bug #1511381: codec_getstreamcodec() in codec.c is corrected to
+  omit a default "error" argument for NULL pointer.  This allows
+  the parser to take a codec from cjkcodecs again.
 
 Library
 -------

Python/codecs.c

@@ -249,14 +249,17 @@ PyObject *codec_getstreamcodec(const char *encoding,
 			       const char *errors,
 			       const int index)
 {
-    PyObject *codecs, *streamcodec;
+    PyObject *codecs, *streamcodec, *codeccls;
 
     codecs = _PyCodec_Lookup(encoding);
     if (codecs == NULL)
 	return NULL;
 
-    streamcodec = PyEval_CallFunction(
-	PyTuple_GET_ITEM(codecs, index), "Os", stream, errors);
+    codeccls = PyTuple_GET_ITEM(codecs, index);
+    if (errors != NULL)
+	streamcodec = PyObject_CallFunction(codeccls, "Os", stream, errors);
+    else
+	streamcodec = PyObject_CallFunction(codeccls, "O", stream);
     Py_DECREF(codecs);
     return streamcodec;
 }