From 3f83c2f4f83cb6a89f463c2dd6faa7f3c4afca3c Mon Sep 17 00:00:00 2001
From: Trim21 <trim21.me@gmail.com>
Date: Sun, 23 Feb 2025 02:12:26 +0800
Subject: [PATCH] fix win32 libpq missing error

---
 psycopg/psycopg/pq/misc.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/psycopg/psycopg/pq/misc.py b/psycopg/psycopg/pq/misc.py
index 20924636a..fe06141c2 100644
--- a/psycopg/psycopg/pq/misc.py
+++ b/psycopg/psycopg/pq/misc.py
@@ -53,6 +53,8 @@ class PGresAttDesc(NamedTuple):
 def find_libpq_full_path() -> str | None:
     if sys.platform == "win32":
         libname = ctypes.util.find_library("libpq.dll")
+        if libname is None:
+            return None
         libname = str(Path(libname).resolve())
 
     elif sys.platform == "darwin":
-- 
2.47.2