diff --git a/json_include.py b/json_include.py
index a5d3751..b8ccc9d 100644
--- a/json_include.py
+++ b/json_include.py
@@ -22,8 +22,15 @@ def read_file(filepath):
         return f.read()
 
 
+def is_string(obj):
+    try:
+        return isinstance(obj, basestring)
+    except NameError:
+        return isinstance(obj, str)
+
+
 def get_include_name(value):
-    if isinstance(value, basestring):
+    if is_string(value):
         rv = INCLUDE_VALUE_PATTERN.search(value)
         if rv:
             return rv.groups()[0]
@@ -34,7 +41,7 @@ def walk_through_to_include(o, dirpath):
     if isinstance(o, dict):
         is_include_exp = False
         if set(o) == set([INCLUDE_KEY]):
-            include_name = get_include_name(o.values()[0])
+            include_name = get_include_name(list(o.values())[0])
             if include_name:
                 is_include_exp = True
                 o.clear()
@@ -45,7 +52,7 @@ def walk_through_to_include(o, dirpath):
         if is_include_exp:
             return
 
-        for k, v in o.iteritems():
+        for k, v in o.items():
             if isinstance(v, OBJECT_TYPES):
                 walk_through_to_include(v, dirpath)
     elif isinstance(o, list):
@@ -113,7 +120,7 @@ def main():
 
     args = parser.parse_args()
 
-    print build_json_include(args.dirpath, args.filename)
+    print(build_json_include(args.dirpath, args.filename))
 
 
 if __name__ == '__main__':
diff --git a/setup.py b/setup.py
index 84658df..401ecd3 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 
 # Use semantic versioning: MAJOR.MINOR.PATCH
-version = '0.1.4'
+version = '0.1.5'
 
 
 def get_requires():
diff --git a/test/json_include_test.py b/test/json_include_test.py
index ae03600..b36da09 100644
--- a/test/json_include_test.py
+++ b/test/json_include_test.py
@@ -28,5 +28,5 @@ def test_build_json_include():
 def run_build_json_include(dirpath, i):
     rv = build_json_include(dirpath, i)
     expect = read_file(os.path.join(_path('expect'), i))
-    print rv
+    print(rv)
     assert rv.strip() == expect.strip()