静态web服务器返回指定页面

初学时，建议各位命名变脸的时候要见名知意，不要学我图省事
import socket

if __name__ == '__main__':
    a = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    a.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
    a.bind(('', 8080))
    a.listen()
    while True:
        conn, ip = a.accept()
        conn_recv = conn.recv(4096)
        if len(conn_recv) > 0:
            recv_data = conn_recv.decode('utf-8')
            print(recv_data)
            recv_data_split = recv_data.split(' ', 2)[1]
            print(recv_data_split)
            # 如果recv_data_split = '/' ,则应该让其访问项目的首页！
            if recv_data_split == '/':
                recv_data_split = '/index.html'
            try:
                with open('static' + recv_data_split, 'rb') as f:
                    f.data = f.read()
            except Exception as e:
                # 设置响应行
                response_line = 'HTTP/1.1 404 Not Found\r\n'
                # 响应头
                response_header = 'Server:PWB1.0\r\n'
                # 响应体
                with open('static/error.html', 'rb') as f:
                    f.data = f.read()
                response_body = f.data
                # 组装响应数据
                response_data = (response_line + response_header + '\r\n').encode('utf-8') + response_body
                # 发送数据
                conn.send(response_data)
            else:
                # 设置响应行
                response_line = 'HTTP/1.1 200 ok\r\n'
                # 响应头
                response_header = 'Server:PWB1.0\r\n'
                # 响应体
                response_body = f.data
                # 组装响应数据
                response_data = (response_line + response_header + '\r\n').encode('utf-8') + response_body
                #发送数据
                conn.send(response_data)
            finally:
                conn.close()