Alexander Belopolsky <belopol...@users.sourceforge.net> added the comment:

On Wed, Jul 7, 2010 at 4:19 PM, Benjamin Peterson
<rep...@bugs.python.org> wrote:

>>  - PyStructSequence_New does not fill ob_item array with NULLs.
>
> I'm not sure it really matters, since the fields should always be
> filled in, but I suppose it can't hurt...

The following pattern is quite common:

tuple = PyTuple_New(size):

for (i = 0; i < size; ++i) {
   item = create_item(...);
   if (item == NULL)
      goto fail;
}
...
fail:
Py_DECREF(tuple);

I don't think this should be outlawed.

----------

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue8413>
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