功能废弃等问题
Topic source如果要在 Python 3.11 里运行,网络连接来获取sina、sohu和163的网站首页的代码可以改成如下:
import asyncio
async def wget(host):
print('wget %s...' % host)
connect = asyncio.open_connection(host, 80)
reader, writer = await connect
header = 'GET / HTTP/1.0\r\nHost: %s\r\n\r\n' % host
writer.write(header.encode('utf-8'))
await writer.drain()
while True:
line = await reader.readline()
if line == b'\r\n':
break
print('%s header > %s' % (host, line.decode('utf-8').rstrip()))
# Ignore the body, close the socket
writer.close()
loop = asyncio.get_event_loop()
tasks = [wget(host)
for host in ['www.sina.com.cn', 'www.sohu.com', 'www.163.com']]
loop.run_until_complete(asyncio.gather(*tasks))
loop.close()
注意,除了使用下节提到的 async/await, 如果 tasks 是一个 list,调用时,需用
asyncio.gather(*tasks)
- 1
sq
这里的代码其实基本都已经废弃了,其实可以直接跳过的,看后面就行了