From 0c605c00ba64ae32365b857cea1bd990b564b877 Mon Sep 17 00:00:00 2001
From: Thomas Li <47963215+lithomas1@users.noreply.github.com>
Date: Wed, 18 Sep 2024 17:16:55 -0400
Subject: [PATCH] Backport PR #59836: BLD: Fix bad Cython annotation

---
 pandas/_libs/tslibs/np_datetime.pxd | 2 +-
 pandas/_libs/tslibs/np_datetime.pyx | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/pandas/_libs/tslibs/np_datetime.pxd b/pandas/_libs/tslibs/np_datetime.pxd
index cb2658d343772..a8ac80a2d0f39 100644
--- a/pandas/_libs/tslibs/np_datetime.pxd
+++ b/pandas/_libs/tslibs/np_datetime.pxd
@@ -89,7 +89,7 @@ cdef int string_to_dts(
     int* out_local,
     int* out_tzoffset,
     bint want_exc,
-    format: str | None = *,
+    str format = *,
     bint exact = *
 ) except? -1
 
diff --git a/pandas/_libs/tslibs/np_datetime.pyx b/pandas/_libs/tslibs/np_datetime.pyx
index aa01a05d0d932..779d1e3111932 100644
--- a/pandas/_libs/tslibs/np_datetime.pyx
+++ b/pandas/_libs/tslibs/np_datetime.pyx
@@ -331,7 +331,7 @@ cdef int string_to_dts(
     int* out_local,
     int* out_tzoffset,
     bint want_exc,
-    format: str | None=None,
+    str format=None,
     bint exact=True,
 ) except? -1:
     cdef: