From eeb701adc0fc29ba803fddf133d917ff45639a00 Mon Sep 17 00:00:00 2001
From: Hai Shi <shihai1992@gmail.com>
Date: Wed, 27 Jan 2021 18:23:33 +0800
Subject: bpo-42979: _zoneinfo exec function checks for PyDateTime_IMPORT
 failure (GH-24333)

Importing datetime can fail.
---
 Modules/_zoneinfo.c | 3 +++
 1 file changed, 3 insertions(+)

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;
-- 
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