500 Lines or Less | A Web Crawler With asyncio Coroutines:用協程寫web爬蟲
1 def fetch(url): 2 sock = socket.socket() 3 sock.connect(('xkcd.com', 80)) 4 request = 'GET {} HTTP/1.0\r\nHost: xkcd.com\r\n\r\n'.format(url) 5 sock.send(request.encode('ascii')) 6 response = b'' 7 chunk = sock.recv(4096) 8 while chunk: 9 response += chunk 10 chunk = sock.recv(4096) 11 12 # Page is now downloaded. 13 links = parse_links(response) 14 q.add(links)
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500 Lines or Less | A Web Crawler With asyncio Coroutines:用協程寫web爬蟲
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