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我需要使用PyCurl来获取输入URL的dns解析结果。以下是代码:Pycurl中的DNS解析结果
buf = cStringIO.StringIO()
c = pycurl.Curl()
c.setopt(c.URL, url)
c.setopt(c.WRITEFUNCTION, buf.write)
c.setopt(c, c.CURL_IPRESOLVE_WHATEVER, host)
c.setopt(c.HTTPHEADER, ["User-Agent: "])
# c.setopt(c.CONNECTTIMEOUT, 20)
c.setopt(c.TIMEOUT, 15)
c.setopt(c.FOLLOWLOCATION, True)
c.perform()
我已经搜索了Pycurl文档并没有找到一个好的答案。