代理背后的Python urllib urlretrieve

问题描述

我查看了 urllib 的文档，但我在代理上找到的所有内容都与 urlopen 有关.但是，我想从给定的 URL 下载 PDF 并将其存储在本地，但使用某个代理服务器.到目前为止，我的方法不起作用:

I looked into the documentation of urllib but all I could find on proxies was related to urlopen. However, I want to download a PDF from a given URL and store it locally but using a certain proxy server. My approach so far which did not work:

import urllib2

proxies = {'http': 'http://123.96.220.2:81'}
opener = urllib2.FancyURLopener(proxies)
download = opener.urlretrieve(URL, file_name)

错误是AttributeError: FancyURLopener instance has no attribute 'urlretrieve'

推荐答案

我相信你可以这样做:

import urllib2

proxy = urllib2.ProxyHandler({'http': '123.96.220.2:81'})
opener = urllib2.build_opener(proxy)
urllib2.install_opener(opener)

with open('filename','wb') as f:
    f.write(urllib2.urlopen(URL).read())
    f.close()

因为 urllib2 没有 urlretrieve你可以使用 urlopen 来获得同样的效果

since urllib2 doesnt have urlretrieveyou can just use urlopen to get the same effect

你一定把文档搞糊涂了，因为 urllib2 也没有 FancyURLopener 这就是你收到错误的原因

you must have got the docs confused becuase urllib2 also doesnt have FancyURLopener thats why youre getting the error

urllib2 在处理代理等时要好得多

urllib2 is much better when handling proxies and such

有关更多信息，请查看此处Urllib2 文档

for more info look here Urllib2 Docs

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