commit 665c7746fca180266b121183c2d5136c547006e0
author Victor Stinner <vstinner@python.org> Fri Apr 30 18:40:30 2021 +0200
committer GitHub <noreply@github.com> Fri Apr 30 18:40:30 2021 +0200
tree 208fbd2a6ac0b7bf001fd3fb09ac36884f967215
parent e374a40afa09be728b01653a06c9febfad9c9c50

bpo-43916: _md5.md5 uses Py_TPFLAGS_DISALLOW_INSTANTIATION (GH-25753)

The following types use Py_TPFLAGS_DISALLOW_INSTANTIATION flag:

* _md5.md5
* _sha1.sha1
* _sha256.sha224
* _sha256.sha256
* _sha512.sha384
* _sha512.sha512

Modules/sha512module.c

diff --git a/Modules/sha512module.c b/Modules/sha512module.c
index 0d8f51e..5e8572c 100644
--- a/Modules/sha512module.c
+++ b/Modules/sha512module.c
@@ -602,7 +602,7 @@ static PyType_Slot sha512_sha384_type_slots[] = {
 static PyType_Spec sha512_sha384_type_spec = {
     .name = "_sha512.sha384",
     .basicsize =  sizeof(SHAobject),
-    .flags = Py_TPFLAGS_DEFAULT,
+    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION,
     .slots = sha512_sha384_type_slots
 };
 
@@ -619,7 +619,7 @@ static PyType_Slot sha512_sha512_type_slots[] = {
 static PyType_Spec sha512_sha512_type_spec = {
     .name = "_sha512.sha512",
     .basicsize =  sizeof(SHAobject),
-    .flags = Py_TPFLAGS_DEFAULT,
+    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION,
     .slots = sha512_sha512_type_slots
 };