Patch #1680961: remove sys.exitfunc and replace it with a private C API. Also, reimplement atexit in C so it can take advantage of this private API.
diff --git a/setup.py b/setup.py
index 573fba2..f1b7460 100644
--- a/setup.py
+++ b/setup.py
@@ -379,6 +379,8 @@
exts.append( Extension('operator', ['operator.c']) )
# _functools
exts.append( Extension("_functools", ["_functoolsmodule.c"]) )
+ # atexit
+ exts.append( Extension("atexit", ["atexitmodule.c"]) )
# Python C API test module
exts.append( Extension('_testcapi', ['_testcapimodule.c']) )
# profilers (_lsprof is for cProfile.py)