Issue: server.py Stuck on Loading, Not Starting
Description
When trying to run server.py using python server.py, the process keeps loading indefinitely and does not start the server.

Environment
OS: macOS

Python Version: 3.13.2

Package Manager: uv

MCP Framework: FastMCP

Code
python
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from mcp.server.fastmcp import FastMCP

Initialize MCP server with auto tool selection

mcp = FastMCP("Basic MCP Server", auto_tool_selection=True)

Addition tool

@mcp.tool()
def add_numbers(num1: int, num2: int) -> dict:
return {"result": num1 + num2}

Run the server

if name == "main":
mcp.run()
Steps to Reproduce
Run the command:

bash
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python server.py
The terminal does not show any output and remains stuck on loading.

Expected Behavior
The server should start and print logs indicating it is running.

Actual Behavior
The terminal remains in a loading state indefinitely without any response.