Format

Author: Nikita Bellini

src/mcp/server/fastmcp/server.py

@@ -252,9 +252,10 @@ async def list_tools(self) -> list[MCPTool]:
             tools.extend(await self._runtime_mcp_tools_generator())
 
         # Check if there are no duplicated tools
-        if len(tools) != len(set([tool.name for tool in tools])):
+        if len(tools) != len({tool.name for tool in tools}):
             raise Exception(
-                "There are duplicated tools. Check the for tools with the same name both static and generated at runtime."
+                "There are duplicated tools. Check the for tools"
+                "with the same name both static and generated at runtime."
             )
 
         return [

tests/server/fastmcp/test_runtime_tools.py

@@ -3,8 +3,8 @@
 import pytest
 
 from mcp.server.fastmcp import FastMCP
-from mcp.shared.memory import create_connected_server_and_client_session
 from mcp.server.fastmcp.tools.base import Tool
+from mcp.shared.memory import create_connected_server_and_client_session
 from mcp.types import TextContent