simple dynamic web server with self defined framework (python)__web

The framework

import timefrom test1 import HTTPServerclass Applicatoin(object):    def __init__(self,urls):        self.urls = urls    def __call__(self, evn, start_response):        path = evn.get("PATH_INFO")        print('original pathinfo %s'%path)        for url,handler in self.urls:            if path == url:                print('----------%s--------'%path)                return handler(evn,start_response)        status = '404 not found'        headers = []        start_response(status,headers)        print('-----%s  not found'%path)        return '404 not found'def show_ctime(evn,start_response):    status = '200 Ok'    headers = [        ('Content-Type','text/plain')    ]    start_response(status,headers)    return time.ctime()def say_hello(env,start_response):    status = '200 Ok'    headers = [        ('Content-Type','text/plain')    ]    start_response(status,headers)    return 'hello'urls = [    ('/',show_ctime),    ('/ctime',show_ctime),    ('/sayhello',say_hello)]if __name__ == '__main__':    app = Applicatoin(urls)    http_server = HTTPServer(app)    http_server.bind(8000)    http_server.start()

The server

from socket import *import refrom multiprocessing import Processclass HTTPServer(object):    def __init__(self,app):        self.sSocket = socket(AF_INET,SOCK_STREAM)        self.app = app        self.sSocket.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)    def start(self):        self.sSocket.listen()        while True:            client_socket,client_add = self.sSocket.accept()            print('---%s %s---connect--'%(client_add))            handle_client_process = Process(target=self.handle_client,args=(client_socket,))            handle_client_process.start()            client_socket.close()    def start_response(self,status,headers):        response_headers = 'HTTP/1.1 '+status+"\r\n"        for header in headers:            response_headers+='%s %s\r\n'%header        self.response_headers = response_headers    def handle_client(self,client_socket):        request_data = client_socket.recv(1024)        print('request data is'%request_data)        requst_lines = request_data.splitlines()        for line in requst_lines:            print(line)        requst_start_line = requst_lines[0]        print('*'*10)        print(requst_start_line.decode('utf-8'))        file_name = re.match(r'\w+ +(/[^ ]*)',requst_start_line.decode('utf-8')).group(1)        method = re.match(r'(\w)+ +/[^ ]*',requst_start_line.decode('utf-8')).group(1)        print('filename = %s'%file_name)        env = {            'PATH_INFO':file_name,            'METHOD':method        }        response_body = self.app(env,self.start_response)        print('respnse body %s'%response_body)        response = self.response_headers + '\r\n'+response_body        print('response = %s'%response)        client_socket.send(bytes(response,'utf-8'))        client_socket.close()    def bind(self,port):        self.sSocket.bind(('',port))