diff options
Diffstat (limited to 'Python')
| -rw-r--r-- | Python/pylifecycle.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Python/pylifecycle.c b/Python/pylifecycle.c index fdb09d910d..f284855f34 100644 --- a/Python/pylifecycle.c +++ b/Python/pylifecycle.c @@ -2086,6 +2086,8 @@ _Py_FatalInitError(_PyInitError err) /* For the atexit module. */ void _Py_PyAtExit(void (*func)(void)) { + /* Guard against API misuse (see bpo-17852) */ + assert(_PyRuntime.pyexitfunc == NULL || _PyRuntime.pyexitfunc == func); _PyRuntime.pyexitfunc = func; } |