From: Ryu Juheon <saidbysolo@gmail.com>
Date: Thu, 17 Apr 2025 19:48:54 +0000 (+0900)
Subject: chore: add type hint for reconstructor (#12527)
X-Git-Tag: rel_2_0_41~26
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90609d9a28f6329a7d0c861aba7180f29cb0e1d0;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

chore: add type hint for reconstructor (#12527)

* chore: add type hint for reconstructor

* chore: fix attr-defined

* chore: use defined typevar

* chore: ignore type error

(cherry picked from commit 299284cec65076fd4c76bf1efaae60b60f4d4f7b)
---

diff --git a/lib/sqlalchemy/orm/mapper.py b/lib/sqlalchemy/orm/mapper.py
index eab2be558f..5844854f9d 100644
--- a/lib/sqlalchemy/orm/mapper.py
+++ b/lib/sqlalchemy/orm/mapper.py
@@ -4304,7 +4304,7 @@ def _dispose_registries(registries: Set[_RegistryType], cascade: bool) -> None:
         reg._new_mappers = False
 
 
-def reconstructor(fn):
+def reconstructor(fn: _Fn) -> _Fn:
     """Decorate a method as the 'reconstructor' hook.
 
     Designates a single method as the "reconstructor", an ``__init__``-like
@@ -4330,7 +4330,7 @@ def reconstructor(fn):
         :meth:`.InstanceEvents.load`
 
     """
-    fn.__sa_reconstructor__ = True
+    fn.__sa_reconstructor__ = True  # type: ignore[attr-defined]
     return fn