STINNER Victor added the comment: According to Amaury an IRC, replacing "Py_XDECREF(obj->attr); obj->attr = NULL;" pattern with "Py_CLEAR(obj->attr);" should fix the issue.
Instead of opening one issue per occurence of this pattern, it is possible to write a semantic patch to do the replace on the whole CPython project using the Coccinelle tool. http://coccinelle.lip6.fr/ See for example attached py_clear.spatch semantic patch. Install coccinelle and run "spatch -in_place -sp_file py_clear.spatch -dir .". The result is the attached patch (python2.7_pyclear.patch). The patch is huge! Mac/Modules/_scproxy.c | 2 +- Mac/Modules/carbonevt/_CarbonEvtmodule.c | 3 +- Mac/Modules/list/_Listmodule.c | 3 +- Modules/_bsddb.c | 48 ++++--------- Modules/_ctypes/_ctypes.c | 18 +--- Modules/_elementtree.c | 8 +- Modules/_hotshot.c | 3 +- Modules/_localemodule.c | 3 +- Modules/_sqlite/connection.c | 6 +- Modules/_sqlite/cursor.c | 12 +-- Modules/_tkinter.c | 6 +- Modules/almodule.c | 3 +- Modules/binascii.c | 21 ++---- Modules/bz2module.c | 12 +-- Modules/cPickle.c | 3 +- Modules/cdmodule.c | 18 +--- Modules/cjkcodecs/multibytecodec.c | 3 +- Modules/datetimemodule.c | 12 +-- Modules/flmodule.c | 12 +-- Modules/fmmodule.c | 3 +- Modules/nismodule.c | 3 +- Modules/posixmodule.c | 33 +++------ Modules/pyexpat.c | 6 +- Modules/readline.c | 7 +- Modules/selectmodule.c | 3 +- Modules/signalmodule.c | 9 +- Modules/svmodule.c | 3 +- Modules/syslogmodule.c | 3 +- Modules/zlibmodule.c | 18 +--- Objects/abstract.c | 6 +- Objects/classobject.c | 18 +--- Objects/descrobject.c | 3 +- Objects/exceptions.c | 3 +- Objects/fileobject.c | 12 +-- Objects/frameobject.c | 3 +- Objects/genobject.c | 3 +- Objects/longobject.c | 3 +- Objects/object.c | 6 +- Objects/stringobject.c | 12 +-- Objects/tupleobject.c | 6 +- Objects/typeobject.c | 12 +-- Objects/unicodeobject.c | 12 +-- Python/Python-ast.c | 381 ++++++++++++++++++++++++++++++++++++++---------------------------------------------------------------------------- Python/bltinmodule.c | 12 +-- Python/errors.c | 3 +- Python/import.c | 6 +- Python/marshal.c | 12 +-- Python/modsupport.c | 3 +- Python/structmember.c | 3 +- Python/sysmodule.c | 9 +- RISCOS/Modules/drawfmodule.c | 2 +- RISCOS/Modules/swimodule.c | 2 +- 52 files changed, 275 insertions(+), 541 deletions(-) ---------- Added file: http://bugs.python.org/file27929/py_clear.spatch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue16445> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
