addr): """ Receive messages from client and broadcast them to other clients until client disconnects """ rest = bytes() while True: try: (msgs, rest) = tincanchat.recv_msgs(sock, rest) except (EOFError, Connection
process_request(request_data) return jsonify({"status": "success"}) 此处,http_request_logger装饰器就是一个典型的AOP实现,它在一个通用的位置处理了所有请求的日志记录,而无需在每个处理函数中重复相同的代码。通过这种方式,装饰器在Python中充当了实现AOP的关键角色,增强了代码的可读性和可维护性。 五、装饰...
在这个例子当中我们创建了两个协程,第一个协程是每隔0.5秒print一个数字,在print完成之后把success写入到future当中。第二个协程就是等待future当中的数据,之后print出来。 在loop当中我们要调度执行的不在是一个协程对象了而是两个,所以我们用asyncio当中的wait将这两个对象包起来。只有当wait当中的两个对象执行结束,...
tasks= [task1, task2, task3]#多个task任务loop= asyncio.get_event_loop()#获取事件循环try: loop.run_until_complete(asyncio.wait(tasks))#注册tasks多个任务,并开启事件循环exceptKeyboardInterrupt as e: # 终端执行,开启事件循环后按ctrl+c结束任务,会报KeyboardInterrupt异常,我们在这里取消task任务 all_t...
BaseEventLoop.sock_sendall(sock,data) Send data to the socket. The socket must be connected to a remote socket. This method continues to send data fromdatauntil either all data has been sent or an error occurs.Noneis returned on success. On error, an exception is raised, and there is ...
directory_split=[iforiinlocal_path.split('/')ifi!='']# 检查远程路径是否存在该本地末级目录try:ifstat.S_ISDIR(sftp.stat(remote_path+directory_split[-1]+'/').st_mode):raiseNotADirectoryError('%s远程路径已存在此目录:%s'%(ip,remote_path+directory_split[-1]+'/'))except:pass# 多余的...
import subprocess try: subprocess.run( ["python", "timer.py", "5"], timeout=10, check=True ) except FileNotFoundError as exc: print(f"Process failed because the executable could not be found.\n{exc}") except subprocess.CalledProcessError as exc: print( f"Process failed because did no...
loop 七、索引 01 为什么要用索引 对于一个应用来说,对数据库的读写比例基本上是10:1,即读多写少 而且对于写来说极少出现性能问题,大多数性能问题都是慢查询 提到加速查,就必须用到索引 02 什么是索引 索引就相当于书的目录,是mysql中一种专门的数据结构,称为key, 索引的本质原理就是通过不断地缩小查询范围...
Python loop = asyncio.get_event_loop() try: loop.run_until_complete(main()) finally: loop.close() You’ll probably see loop.get_event_loop() floating around in older examples, but unless you have a specific need to fine-tune control over the event loop management, asyncio.run() ...
loop = asyncio.get_event_loop() try: loop.run_until_complete(coro) finally: loop.close Asyncio 解释 asyncio.create_task(coro),表示对输入的协程coro创建一个任务,安排它的执行,并返回此任务对象。老版本可以用asyncio.ensure_future(coro)等效替代。 tasks = [asyncio.create_task(download_one(site)) ...