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What is ?s here?

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  What is ?s here? satishmlmlml@gmail.com - 2014-11-11 01:37 -0800
    Re: What is ?s here? Denis McMahon <denismfmcmahon@gmail.com> - 2014-11-11 17:34 +0000

#80517 — What is ?s here?

What does ?s do in the following piece of code?

import re, pprint
text = open('books.xml').read()
pattern = '(?s)isbn="(.*?)".*?<title>(.*?)</title>'
found = re.findall(pattern, text)
mapping = {isbn: title for (isbn, title) in found}
pprint.pprint(mapping)

Here is books.xml

<catalog>
       <book isbn="0-596-00128-2">
             <title>Python &amp; XML</title>
             <date>December 2001</date>
             <author>Jones, Drake</author>
       </book>
</catalog>

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#80544

On Tue, 11 Nov 2014 01:37:21 -0800, satishmlmlml wrote:

> What does ?s do in the following piece of code?

It tells you to learn about regex.

-- 
Denis McMahon, denismfmcmahon@gmail.com

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