Regex and syntax tweaks

I didn't pay close enough attention to the try grammar.

tubesync/tubesync/sqlite3/base.py

@@ -28,15 +28,14 @@ class DatabaseWrapper(base.DatabaseWrapper):
 
     def _remove_invalid_keyword_argument(self, params):
         try:
-            prog = re.compile(r"^'(?P<key>[^']+)' is an invalid keyword argument for Connection[()]{2}$")
+            prog = re.compile(r"^(?P<quote>['])(?P<key>[^']+)(?P=quote) is an invalid keyword argument for Connection\(\)$")
             match = prog.match(e.args[0])
-        else:
+
         if match:
             key = match.group('key')
             try:
                 # remove the invalid keyword argument
                 del params[key]
-                else:
             return True
 
         return False