Remove python 2.6-specific workaround in db_url.

Replaces #2915

Author: coleifer

playhouse/db_url.py

@@ -39,13 +39,10 @@ def parseresult_to_dict(parsed, unquote_password=False):
 
     # urlparse in python 2.6 is broken so query will be empty and instead
     # appended to path complete with '?'
-    path_parts = parsed.path[1:].split('?')
-    try:
-        query = path_parts[1]
-    except IndexError:
-        query = parsed.query
+    path = parsed.path[1:]  # Ignore leading '/'.
+    query = parsed.query
 
-    connect_kwargs = {'database': path_parts[0]}
+    connect_kwargs = {'database': path}
     if parsed.username:
         connect_kwargs['user'] = parsed.username
     if parsed.password:

tests/db_url.py

@@ -65,6 +65,12 @@ def test_db_url(self):
         self.assertTrue(isinstance(db, SqliteDatabase))
         self.assertEqual(db.database, ':memory:')
 
+        db = connect('sqlite:///test.db?p1=1?a&p2=22&p3=xyz')
+        self.assertTrue(isinstance(db, SqliteDatabase))
+        self.assertEqual(db.database, 'test.db')
+        self.assertEqual(db.connect_params, {
+            'p1': '1?a', 'p2': 22, 'p3': 'xyz'})
+
     def test_bad_scheme(self):
         def _test_scheme():
             connect('missing:///')