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update async wget2 sample #18

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update async wget2 sample #18

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22 changes: 16 additions & 6 deletions samples/async/async_wget2.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,22 @@
import threading
import asyncio

async def hello():
print('Hello world! (%s)' % threading.currentThread())
await asyncio.sleep(1)
print('Hello again! (%s)' % threading.currentThread())
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 = [hello(), hello()]
tasks = [wget(host) for host in ['www.sina.com.cn', 'www.sohu.com', 'www.163.com']]
loop.run_until_complete(asyncio.wait(tasks))
loop.close()
loop.close()