diff --git a/.gitignore b/.gitignore
index 224d084..d19c907 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,4 @@ build/
 dist/
 macli.spec
 venv/
-
+*.pyc
diff --git a/api_cadvisor.py b/api_cadvisor.py
index 52d99a8..31ff8ec 100755
--- a/api_cadvisor.py
+++ b/api_cadvisor.py
@@ -1,12 +1,14 @@
 #!/usr/bin/python
 
+from builtins import str
+from builtins import object
 import requests
 import json
 import dateutil.parser
 import pprint
 
 
-class CadvisorContainer:
+class CadvisorContainer(object):
     data = {}
     mesos_id = ""
     cpu_usage = 0.0
@@ -48,7 +50,7 @@ def get_cpu_usage(self):
 #    self.req_data(url)
 
 
-class Cadvisor:
+class Cadvisor(object):
     url = ""
     machine = {}
     host = CadvisorContainer()
diff --git a/macli.py b/macli.py
index 5c6d16a..4ed5785 100755
--- a/macli.py
+++ b/macli.py
@@ -1,5 +1,7 @@
 #!/usr/bin/python
-
+from __future__ import print_function
+from builtins import str
+from sys import exit
 from os import environ
 from marathon import MarathonClient, MarathonApp
 from marathon.exceptions import *
@@ -14,8 +16,9 @@
 
 class mPrinter(pprint.PrettyPrinter):
     def format(self, object, context, maxlevels, level):
-        if isinstance(object, unicode):
+        if isinstance(object, bytes):
             return (object.encode('utf8'), True, False)
+
         return pprint.PrettyPrinter.format(self, object, context, maxlevels,
                                            level)