updated imports in tests

gluon/tests/test_storage.py

@@ -4,13 +4,13 @@
 """ Unit tests for storage.py """
 
 import unittest
-from fix_path import fix_sys_path
+from .fix_path import fix_sys_path
 
 fix_sys_path(__file__)
 
-from storage import Storage, StorageList, List
-from http import HTTP
-import pickle
+from gluon.storage import Storage, StorageList, List
+from gluon.http import HTTP
+from gluon._compat import pickle
 
 
 class TestStorage(unittest.TestCase):