From 278e63191b3ba6b26a836515e52d9f4d7a4c4210 Mon Sep 17 00:00:00 2001
From: eyetheek <eyetheekhsp@gmail.com>
Date: Wed, 11 Mar 2026 19:14:43 +0530
Subject: [PATCH] refactor: remove redundant custom_encoder assignment in
 jsonable_encoder.

---
 fastapi/encoders.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fastapi/encoders.py b/fastapi/encoders.py
index e20255c110..5fe45ec830 100644
--- a/fastapi/encoders.py
+++ b/fastapi/encoders.py
@@ -211,8 +211,7 @@ def jsonable_encoder(
     Read more about it in the
     [FastAPI docs for JSON Compatible Encoder](https://fastapi.tiangolo.com/tutorial/encoder/).
     """
-    custom_encoder = custom_encoder or {}
-    if custom_encoder:
+    if custom_encoder is not None:
         if type(obj) in custom_encoder:
             return custom_encoder[type(obj)](obj)
         else: