On Tue, Oct 6, 2015, at 19:12, raymond.hettinger wrote: > https://hg.python.org/cpython/rev/37aee118e1a3 > changeset: 98578:37aee118e1a3 > branch: 2.7 > parent: 98572:60c44a09c5fc > user: Raymond Hettinger <[email protected]> > date: Tue Oct 06 23:12:02 2015 -0400 > summary: > Backport early-out 91259f061cfb to reduce the cost of bb1a2944bcb6 > > files: > Modules/_collectionsmodule.c | 6 +++++- > 1 files changed, 5 insertions(+), 1 deletions(-) > > > diff --git a/Modules/_collectionsmodule.c b/Modules/_collectionsmodule.c > --- a/Modules/_collectionsmodule.c > +++ b/Modules/_collectionsmodule.c > @@ -651,6 +651,9 @@ > Py_ssize_t n; > PyObject *item; > > + if (Py_SIZE(deque) == 0) > + return; > +
dequeue is not varsized in Python 2.7, so using Py_SIZE() is incorrect. _______________________________________________ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com