Rosetta Code/Rank languages by popularity

Sort most popular programming languages based in number of members in Rosetta Code categorys (from http://www.rosettacode.org/w/index.php?title=Special:Categories&limit=500)

Output:

1. 246 - Programming_Tasks 
2. 203 - Python 
3. 201 - Ada 
4. 188 - OCaml 
5. 171 - Perl 
6. 169 - Java 
7. 168 - Haskell 
8. 157 - C 
9. 141 - Forth 
10. 140 - Ruby 
...

Filtering wrong results is optional. You can check against http://www.rosettacode.org/wiki/Special:MostLinkedCategories

Python

<python>import urllib import re

def key1(x):

   return int(x.split()[0])

a = urllib.urlopen("http://www.rosettacode.org/w/index.php?title=Special:Categories&limit=500")

entries = [] for line in a:

   match = re.search('>([^<>]*)</a> \((\d+) members?\)', line)
   if match:
       entries.append(match.group(2) + ' - ' + match.group(1))

for c, line in enumerate(sorted(entries, key=key1, reverse=True)):

   print "%3s. %s" % (c+1, line)</python>