commit eeb701adc0fc29ba803fddf133d917ff45639a00
author Hai Shi <shihai1992@gmail.com> Wed Jan 27 18:23:33 2021 +0800
committer GitHub <noreply@github.com> Wed Jan 27 11:23:33 2021 +0100
tree 08e5837b88ea38c1cec672ca79082d3f4ab46bfb
parent 6790005a9a30ae3eca69d1957fb072171643a366

bpo-42979: _zoneinfo exec function checks for PyDateTime_IMPORT failure (GH-24333)

Importing datetime can fail.

Modules/_zoneinfo.c

diff --git a/Modules/_zoneinfo.c b/Modules/_zoneinfo.c
index 4a4cbdb..d0c462f 100644
--- a/Modules/_zoneinfo.c
+++ b/Modules/_zoneinfo.c
@@ -2629,6 +2629,9 @@ static int
 zoneinfomodule_exec(PyObject *m)
 {
     PyDateTime_IMPORT;
+    if (PyDateTimeAPI == NULL) {
+        goto error;
+    }
     PyZoneInfo_ZoneInfoType.tp_base = PyDateTimeAPI->TZInfoType;
     if (PyType_Ready(&PyZoneInfo_ZoneInfoType) < 0) {
         goto error;