From 5ee159a4b343bac1c5575788366d31bc836331fc Mon Sep 17 00:00:00 2001
From: 633WHU <cliu_whu@yeah.net>
Date: Sun, 3 Aug 2025 21:52:03 +0800
Subject: [PATCH] perf: optimize string operations in OpenAPI parameter
 processing (#1342)

---
 src/fastmcp/utilities/openapi.py | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/fastmcp/utilities/openapi.py b/src/fastmcp/utilities/openapi.py
index 044d58aa3..886456ca7 100644
--- a/src/fastmcp/utilities/openapi.py
+++ b/src/fastmcp/utilities/openapi.py
@@ -82,13 +82,9 @@ def format_array_parameter(
             return values
         else:
             # For path parameters, fallback to string representation without Python syntax
-            str_value = (
-                str(values)
-                .replace("[", "")
-                .replace("]", "")
-                .replace("'", "")
-                .replace('"', "")
-            )
+            # Use str.translate() for efficient character removal
+            translation_table = str.maketrans("", "", "[]'\"")
+            str_value = str(values).translate(translation_table)
             return str_value