Python PycURL 网络编程
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Python PycURL 网络编程
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在使用urllib的時候經常會死掉,以前debug過,是沒有設置 timing out 所以超時后就會死掉。
PycURL是curl的python庫,雖然有些curl的功能沒有實現,但是還是很強勁的。
curl是非常強勁的一個工具,
google內部用它來 debug GDATA API. Using cURL to interact with Google data services
可以去 http://pycurl.sourceforge.net/ 下載最新的PycURL。
簡單的PycURL例子
import pycurl import StringIO?? url = "http://www.google.com/" crl = pycurl.Curl() crl.setopt(pycurl.VERBOSE,1) crl.setopt(pycurl.FOLLOWLOCATION, 1) crl.setopt(pycurl.MAXREDIRS, 5) crl.fp = StringIO.StringIO() crl.setopt(pycurl.URL, url) crl.setopt(crl.WRITEFUNCTION, crl.fp.write) crl.perform() print crl.fp.getvalue()PycURL 自動處理cookie
import pycurl import StringIO?? url = "http://www.google.com/" crl = pycurl.Curl() crl.setopt(pycurl.VERBOSE,1) crl.setopt(pycurl.FOLLOWLOCATION, 1) crl.setopt(pycurl.MAXREDIRS, 5) crl.fp = StringIO.StringIO() crl.setopt(pycurl.URL, url) crl.setopt(crl.WRITEFUNCTION, crl.fp.write)?? # Option -b/--cookie <name=string/file> Cookie string or file to read cookies from # Note: must be a string, not a file object. crl.setopt(pycurl.COOKIEFILE, "cookie_file_name")?? # Option -c/--cookie-jar <file> Write cookies to this file after operation # Note: must be a string, not a file object. crl.setopt(pycurl.COOKIEJAR, "cookie_file_name")?? crl.perform() print crl.fp.getvalue()PycURL 實現POST方法
import pycurl import StringIO import urllib?? url = "http://www.google.com/" post_data_dic = {"name":"value"} crl = pycurl.Curl() crl.setopt(pycurl.VERBOSE,1) crl.setopt(pycurl.FOLLOWLOCATION, 1) crl.setopt(pycurl.MAXREDIRS, 5) #crl.setopt(pycurl.AUTOREFERER,1)?? crl.setopt(pycurl.CONNECTTIMEOUT, 60) crl.setopt(pycurl.TIMEOUT, 300) #crl.setopt(pycurl.PROXY,proxy) crl.setopt(pycurl.HTTPPROXYTUNNEL,1) #crl.setopt(pycurl.NOSIGNAL, 1) crl.fp = StringIO.StringIO() crl.setopt(pycurl.USERAGENT, "dhgu hoho")?? # Option -d/--data <data> HTTP POST data crl.setopt(crl.POSTFIELDS, urllib.urlencode(post_data_dic))?? crl.setopt(pycurl.URL, url) crl.setopt(crl.WRITEFUNCTION, crl.fp.write) crl.perform()?? print crl.fp.getvalue()urllib 超時設置
import socket socket.setdefaulttimeout(5.0)轉載于:https://www.cnblogs.com/changyou/archive/2010/01/09/1643075.html
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