--- a/roundup/backends/indexer_rdbms.py	Thu Mar 12 02:25:03 2009 +0000
+++ b/roundup/backends/indexer_rdbms.py	Thu Mar 12 02:52:56 2009 +0000
@@ -1,9 +1,11 @@
 #$Id: indexer_rdbms.py,v 1.18 2008-09-01 00:43:02 richard Exp $
-''' This implements the full-text indexer over two RDBMS tables. The first
+""" This implements the full-text indexer over two RDBMS tables. The first
 is a mapping of words to occurance IDs. The second maps the IDs to (Class,
 propname, itemid) instances.
-'''
-import re, sets
+"""
+import re
+# Python 2.3 ... 2.6 compatibility:
+from roundup.anypy.sets_ import set
 
 from roundup.backends.indexer_common import Indexer as IndexerBase
 
@@ -14,27 +16,27 @@
         self.reindex = 0
 
     def close(self):
-        '''close the indexing database'''
+        """close the indexing database"""
         # just nuke the circular reference
         self.db = None
 
     def save_index(self):
-        '''Save the changes to the index.'''
+        """Save the changes to the index."""
         # not necessary - the RDBMS connection will handle this for us
         pass
 
     def force_reindex(self):
-        '''Force a reindexing of the database.  This essentially
+        """Force a reindexing of the database.  This essentially
         empties the tables ids and index and sets a flag so
-        that the databases are reindexed'''
+        that the databases are reindexed"""
         self.reindex = 1
 
     def should_reindex(self):
-        '''returns True if the indexes need to be rebuilt'''
+        """returns True if the indexes need to be rebuilt"""
         return self.reindex
 
     def add_text(self, identifier, text, mime_type='text/plain'):
-        ''' "identifier" is  (classname, itemid, property) '''
+        """ "identifier" is  (classname, itemid, property) """
         if mime_type != 'text/plain':
             return
 
@@ -65,7 +67,7 @@
         text = unicode(text, "utf-8", "replace").upper()
         wordlist = [w.encode("utf-8", "replace")
                 for w in re.findall(r'(?u)\b\w{2,25}\b', text)]
-        words = sets.Set()
+        words = set()
         for word in wordlist:
             if self.is_stopword(word): continue
             if len(word) > 25: continue
@@ -77,10 +79,10 @@
         self.db.cursor.executemany(sql, words)
 
     def find(self, wordlist):
-        '''look up all the words in the wordlist.
+        """look up all the words in the wordlist.
         If none are found return an empty dictionary
         * more rules here
-        '''
+        """
         if not wordlist:
             return []