如何在python中获取特定范围内的空闲端口

import socket

def is_port_free(port):
    try:
        # 创建一个套接字对象
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        # 尝试绑定端口
        sock.bind(('localhost', port))
        # 关闭套接字
        sock.close()
        return True
    except socket.error:
        return False

def get_free_port(start_port, end_port):
    for port in range(start_port, end_port + 1):
        if is_port_free(port):
            return port
    return None

start_port = 8000
end_port = 9000
free_port = get_free_port(start_port, end_port)
if free_port:
    print("空闲端口:", free_port)
else:
    print("没有找到空闲端口")