python regex multiple find

Question

I'm trying to extract properly some cookies from a web request. Basically i have this string:

 str="""Cole_gal_langid=0; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_styleid=4; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_viewid=test; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_appid=gal; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_navk=common.invalidBookmark; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_trans=InvalidBookmark; Expires=Sun, 14-Jul-13 20:37:22 GMT"""

I want to remove all "Expires=Sun, 14-Jul-13 20:37:22 GMT," entries within this string. so this string become this:

str="""Cole_gal_langid=0; Cole_gal_styleid=4; Cole_gal_viewid=test; Cole_gal_appid=gal; Cole_gal_navk=common.invalidBookmark; Cole_gal_trans=InvalidBookmark;"""

I was thinking of using Re for this :

import re

str="""Cole_gal_langid=0; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_styleid=4; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_viewid=test; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_appid=gal; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_navk=common.invalidBookmark; Expires=Sun, 14-Jul-13 20:37:22 GMT, Cole_gal_trans=InvalidBookmark; Expires=Sun, 14-Jul-13 20:37:22 GMT"""

a = re.search('(Cole_gal_*.\=*)[^;]*', str)
if a:
   quote = "Regex found this: "+a.group(0)+"\r\n"
   print quote

Unfortunatly, i only get one result instead of all of the actual cookies

Any help or suggestion will be greatly appreciated.

Thanks !

Nice post. I like that you showed example input and the expected output. — Raymond Hettinger
– Raymond Hettinger, Commented Jul 14, 2012 at 21:15

Raymond Hettinger · Accepted Answer · 2012-07-14 21:12:50Z

2

Removes multiple occurrences of a pattern a job for re.sub:

>>> re.sub(r'Expires=.*?GMT([,;]|$)', '', s)
'Cole_gal_langid=0;  Cole_gal_styleid=4;  Cole_gal_viewid=test;  Cole_gal_appid=gal;  Cole_gal_navk=common.invalidBookmark;  Cole_gal_trans=InvalidBookmark; '

answered Jul 14, 2012 at 21:12

Raymond Hettinger

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Joey · Accepted Answer · 2012-07-14 20:58:16Z

1

What about findall?

Return all non-overlapping matches of pattern in string, as a list of strings. The string is scanned left-to-right, and matches are returned in the order found. If one or more groups are present in the pattern, return a list of groups; this will be a list of tuples if the pattern has more than one group. Empty matches are included in the result unless they touch the beginning of another match.

answered Jul 14, 2012 at 20:58

Joey

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BrenBarn · Accepted Answer · 2012-07-14 20:57:44Z

0

Look at the re.finditer function.

answered Jul 14, 2012 at 20:57

BrenBarn

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