将PDFMiner(Python)与在线pdf文件一起使用.编码网址? [英] Using PDFMiner (Python) with online pdf files. Encode the url?

问题描述

我希望使用PDFMiner提取在线上可用的pdf文件的内容.

I am wishing to extract the content of pdf files available online using PDFMiner.

我的代码基于文档中可用的代码用于提取硬盘上PDF文件的内容:

My code is based on the one available in the documentation used to extract the content of PDF files on the hard disk:

# Open a PDF file.
fp = open('mypdf.pdf', 'rb')
# Create a PDF parser object associated with the file object.
parser = PDFParser(fp)
# Create a PDF document object that stores the document structure.
document = PDFDocument(parser)

通过一些小的改动，效果很好.

That works quite well with some small changes.

现在，我已经尝试过urllib2.openurl用于在线PDF，但这不起作用.我收到一条错误消息:coercing to Unicode: need string or buffer, instance found.

Now, I have tried urllib2.openurl for online PDFs but that doesn't work. I get an error message : coercing to Unicode: need string or buffer, instance found.

如何从urllib2.openurl中获取字符串(或其他内容)，以使其与open函数使用的PDF文件名(而不是URL)相同?"

How can I get a string (or whatever) from urllib2.openurl so that it is the same as what the open function when I give it a PDF file name (versus an URL)`?

如果我的问题不清楚，请告诉我.

Please tell me if my question is not clear.

推荐答案

好吧，我终于找到了解决方法，

Well, I finally found out a solution,

我求助于Request和StringIO，摆脱了open('my_file', 'rd')命令

I resorted on Request and StringIO and got rid off the open('my_file', 'rd') command

from urllib2 import Request
from StringIO import StringIO

url = 'my_url'

open = urllib2.urlopen(Request(url)).read()
memoryFile = StringIO(open)

parser = PDFParser(memoryFile)

这样，Python会将url视为文件(就是这样).

That way Python considers the url as a file (to say so).

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