如何使用Python通过HTTP从远程Zip存档中读取所选文件？ [英] How do I read selected files from a remote Zip archive over HTTP using Python?

问题描述

我需要使用Python从远程zip存档中读取与文件名匹配的所选文件。我不想将完整的zip保存到临时文件中（它不是那么大，所以我可以处理内存中的所有内容）。

I need to read selected files, matching on the file name, from a remote zip archive using Python. I don't want to save the full zip to a temporary file (it's not that large, so I can handle everything in memory).

我已经写过代码，它的工作原理，我自己回答这个问题，以便我以后可以搜索它。但由于有证据表明我是Stackoverflow上的笨蛋参与者之一，我确信还有改进的余地。

I've already written the code and it works, and I'm answering this myself so I can search for it later. But since evidence suggests that I'm one of the dumber participants on Stackoverflow, I'm sure there's room for improvement.

推荐答案

我是这样做的（抓住所有以.ranks结尾的文件）：

Here's how I did it (grabbing all files ending in ".ranks"):

import urllib2, cStringIO, zipfile

try:
    remotezip = urllib2.urlopen(url)
    zipinmemory = cStringIO.StringIO(remotezip.read())
    zip = zipfile.ZipFile(zipinmemory)
    for fn in zip.namelist():
        if fn.endswith(".ranks"):
            ranks_data = zip.read(fn)
            for line in ranks_data.split("\n"):
                # do something with each line
except urllib2.HTTPError:
    # handle exception

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