From 6bbf134a0c5ccdef413b2168fca099e33e460b4a Mon Sep 17 00:00:00 2001
From: Adrien Berchet <adrien.berchet@gmail.com>
Date: Sat, 23 Dec 2023 14:41:28 +0100
Subject: [PATCH] Fix: Handle empty doctrings in optimized mode (#484)

---
 geoalchemy2/utils.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/geoalchemy2/utils.py b/geoalchemy2/utils.py
index d5b21b90..85e7062f 100644
--- a/geoalchemy2/utils.py
+++ b/geoalchemy2/utils.py
@@ -9,8 +9,9 @@ def authorized_values_in_docstring(**kwargs):
     """
 
     def inner(func):
-        for k, v in kwargs.items():
-            func.__doc__ = func.__doc__.replace(f"<{k}>", str(v))
+        if func.__doc__ is not None:
+            for k, v in kwargs.items():
+                func.__doc__ = func.__doc__.replace(f"<{k}>", str(v))
         return func
 
     return inner