commit 3e44e9af9ea4c5e82912a01f256d4abcae96f32b
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Wed May 12 07:02:46 2021 -0700
committer GitHub <noreply@github.com> Wed May 12 07:02:46 2021 -0700
tree 932d89cd13d7386b5ed3756d1a82198cd4e98652
parent 48cb11bf5b426bd3f1d010f987c03115661261b7

bpo-44089: Allow subclassing of ``csv.Error`` (GH-26008) (GH-26066)

* fix subclass error

* Update 2021-05-09-22-52-34.bpo-44089.IoANsN.rst
(cherry picked from commit 2b458c1dba4058c808fde25226bb2d91c5a909ca)

Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>

Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>

Modules/_csv.c

diff --git a/Modules/_csv.c b/Modules/_csv.c
index cade1ca..bdb67fd 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -1515,7 +1515,7 @@ static PyType_Slot error_slots[] = {
 
 PyType_Spec error_spec = {
     .name = "_csv.Error",
-    .flags = Py_TPFLAGS_DEFAULT,
+    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
     .slots = error_slots,
 };