diff --git a/test_ago.py b/test_ago.py
index 31972ce..6db679e 100644
--- a/test_ago.py
+++ b/test_ago.py
@@ -1,17 +1,11 @@
+from __future__ import print_function
+
 from datetime import datetime
 from datetime import timedelta
 
 from ago import human
 from ago import delta2dict
 
-try:
-    from types import StringType as STRING
-    from types import DictType as DICT
-except ImportError:
-    import builtins
-    STRING = builtins.str
-    DICT = builtins.dict
-
 # datetime objects
 PRESENT = datetime.now()
 PAST    = PRESENT - timedelta( 492, 58711, 45 ) # days, secs, ms
@@ -23,13 +17,13 @@ FUTURE_DELTA = PRESENT - FUTURE
 ONE_YEAR_FOUR_HOURS_DELTA = timedelta( 365, 14400, 0 )
 
 def test_human_passed_datetime_is_string():
-    assert type(human( PAST )) is STRING
+    assert isinstance(human( PAST ), str)
 
 def test_human_passed_timedelta_is_string():
-    assert type(human( PAST_DELTA )) is STRING
+    assert isinstance(human( PAST_DELTA ), str)
 
 def test_delta2dict_is_dict():
-    assert type(delta2dict( PAST_DELTA )) is DICT
+    assert isinstance(delta2dict( PAST_DELTA ), dict)
 
 def test_ago_in_past_human():
     assert 'ago' in human( PAST )