Fixed django#19070 -- urlize filter no longer raises exceptions on 2.7

Thanks to claudep for the patch.

Author: andrewgodwin

django/utils/html.py

@@ -18,7 +18,7 @@
 
 # Configuration for urlize() function.
 TRAILING_PUNCTUATION = ['.', ',', ':', ';', '.)']
-WRAPPING_PUNCTUATION = [('(', ')'), ('<', '>'), ('&lt;', '&gt;')]
+WRAPPING_PUNCTUATION = [('(', ')'), ('<', '>'), ('[', ']'), ('&lt;', '&gt;')]
 
 # List of possible strings used for bullets in bulleted lists.
 DOTS = ['&middot;', '*', '\u2022', '&#149;', '&bull;', '&#8226;']

tests/regressiontests/defaultfilters/tests.py

@@ -304,7 +304,12 @@ def test_urlize(self):
 
  # Check urlize trims trailing period when followed by parenthesis - see #18644
  self.assertEqual(urlize('(Go to http://www.example.com/foo.)'),
- '(Go to <a href="http://www.example.com/foo" rel="nofollow">http://www.example.com/foo</a>.)')
+ '(Go to <a href="http://www.example.com/foo" rel="nofollow">http://www.example.com/foo</a>.)')
+
+ # Check urlize doesn't crash when square bracket is appended to url (#19070)
+ self.assertEqual(urlize('[see www.example.com]'),
+ '[see <a href="http://www.example.com" rel="nofollow">www.example.com</a>]' )
+
 
  def test_wordcount(self):
  self.assertEqual(wordcount(''), 0)