From 8f67726dccf96e434dbc4b49f7d28a8da61df9c6 Mon Sep 17 00:00:00 2001
From: Stephen Morton <git@tungol.org>
Date: Mon, 14 Oct 2024 15:30:30 -0700
Subject: [PATCH 1/2] csv.Dialect doesn't actually subclass _csv.Dialect

It does a weird wrapping thing instead:
https://github.com/python/cpython/blob/2a5cdb251674ce8d9a824c102f7cd846d944cfa4/Lib/csv.py#L114
---
 stdlib/csv.pyi | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/stdlib/csv.pyi b/stdlib/csv.pyi
index a1656f217ec6..835446990b9d 100644
--- a/stdlib/csv.pyi
+++ b/stdlib/csv.pyi
@@ -4,7 +4,6 @@ from _csv import (
     QUOTE_MINIMAL as QUOTE_MINIMAL,
     QUOTE_NONE as QUOTE_NONE,
     QUOTE_NONNUMERIC as QUOTE_NONNUMERIC,
-    Dialect as _Dialect,
     Error as Error,
     __version__ as __version__,
     _DialectLike,
@@ -59,7 +58,15 @@ if sys.version_info < (3, 13):
 
 _T = TypeVar("_T")
 
-class Dialect(_Dialect):
+class Dialect:
+    delimiter: str
+    quotechar: str | None
+    escapechar: str | None
+    doublequote: bool
+    skipinitialspace: bool
+    lineterminator: str
+    quoting: _QuotingType
+    strict: bool
     def __init__(self) -> None: ...
 
 class excel(Dialect): ...

From a8ba0cd18bede25b0d4748aa1d27380c5efbe08e Mon Sep 17 00:00:00 2001
From: Stephen Morton <git@tungol.org>
Date: Mon, 14 Oct 2024 16:06:50 -0700
Subject: [PATCH 2/2] add csv.Dialect to _DialectLike alias

---
 stdlib/_csv.pyi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/stdlib/_csv.pyi b/stdlib/_csv.pyi
index 6d1893cf8c16..0e206a63b260 100644
--- a/stdlib/_csv.pyi
+++ b/stdlib/_csv.pyi
@@ -1,3 +1,4 @@
+import csv
 import sys
 from _typeshed import SupportsWrite
 from collections.abc import Iterable, Iterator
@@ -20,7 +21,7 @@ _QuotingType: TypeAlias = int
 
 class Error(Exception): ...
 
-_DialectLike: TypeAlias = str | Dialect | type[Dialect]
+_DialectLike: TypeAlias = str | Dialect | csv.Dialect | type[Dialect | csv.Dialect]
 
 class Dialect:
     delimiter: str