diff --git a/.gitignore b/.gitignore
index 8928fea0c32dc..b6e586e270209 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@ babel
 .coverage
 _build
 _static
+_images
 caravel/bin/caravelc
 env_py3
 .eggs
diff --git a/caravel/__init__.py b/caravel/__init__.py
index c3517f0c29b66..e424499b741dd 100644
--- a/caravel/__init__.py
+++ b/caravel/__init__.py
@@ -1,4 +1,8 @@
 """Package's main module!"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 import logging
 import os
diff --git a/caravel/ascii_art.py b/caravel/ascii_art.py
index 4804469480c82..acb41ccf9475a 100644
--- a/caravel/ascii_art.py
+++ b/caravel/ascii_art.py
@@ -1,3 +1,8 @@
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
+
 error = (
 "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\n"+
 "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNNMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\n"+
diff --git a/caravel/bin/caravel b/caravel/bin/caravel
index 5400b949577cb..5c59c08c7fbff 100755
--- a/caravel/bin/caravel
+++ b/caravel/bin/caravel
@@ -1,4 +1,8 @@
 #!/usr/bin/env python
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 from datetime import datetime
 import logging
diff --git a/caravel/config.py b/caravel/config.py
index 01876998da82c..33d244a97cbed 100644
--- a/caravel/config.py
+++ b/caravel/config.py
@@ -4,6 +4,11 @@
 in your PYTHONPATH as there is a ``from local_config import *``
 at the end of this file.
 """
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
+
 import os
 from flask_appbuilder.security.manager import AUTH_DB
 from dateutil import tz
diff --git a/caravel/data/__init__.py b/caravel/data/__init__.py
index 7d1f06994890d..43ce7d92cb068 100644
--- a/caravel/data/__init__.py
+++ b/caravel/data/__init__.py
@@ -1,4 +1,8 @@
 """Loads datasets, dashboards and slices in a new caravel instance"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 import gzip
 import json
diff --git a/caravel/data/countries.py b/caravel/data/countries.py
index 663c7d575926f..b725cc22ba79e 100644
--- a/caravel/data/countries.py
+++ b/caravel/data/countries.py
@@ -1,4 +1,8 @@
 """This module contains data related to countries and is used for geo mapping"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 countries = [
     {
diff --git a/caravel/forms.py b/caravel/forms.py
index cfb59653dfad1..159437adc4aa9 100644
--- a/caravel/forms.py
+++ b/caravel/forms.py
@@ -1,4 +1,8 @@
 """Contains the logic to create cohesive forms on the explore view"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 from wtforms import (
     Form, SelectMultipleField, SelectField, TextField, TextAreaField,
diff --git a/caravel/models.py b/caravel/models.py
index b4bcdd3f1e97f..a6063c6425ee5 100644
--- a/caravel/models.py
+++ b/caravel/models.py
@@ -1,4 +1,8 @@
 """A collection of ORM sqlalchemy models for Caravel"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 from copy import deepcopy, copy
 from collections import namedtuple
@@ -191,8 +195,8 @@ def slice_url(self):
         slice_params['slice_name'] = self.slice_name
         from werkzeug.urls import Href
         href = Href(
-            "/caravel/explore/{self.datasource_type}/"
-            "{self.datasource_id}/".format(self=self))
+            "/caravel/explore/{obj.datasource_type}/"
+            "{obj.datasource_id}/".format(obj=self))
         return href(slice_params)
 
     @property
@@ -202,8 +206,8 @@ def edit_url(self):
     @property
     def slice_link(self):
         url = self.slice_url
-        return '<a href="{url}">{self.slice_name}</a>'.format(
-            url=url, self=self)
+        return '<a href="{url}">{obj.slice_name}</a>'.format(
+            url=url, obj=self)
 
 
 dashboard_slices = Table(
@@ -244,7 +248,7 @@ def metadata_dejson(self):
             return {}
 
     def dashboard_link(self):
-        return '<a href="{self.url}">{self.dashboard_title}</a>'.format(self=self)
+        return '<a href="{obj.url}">{obj.dashboard_title}</a>'.format(obj=self)
 
     @property
     def json_data(self):
@@ -432,12 +436,12 @@ def link(self):
     @property
     def perm(self):
         return (
-            "[{self.database}].[{self.table_name}]"
-            "(id:{self.id})").format(self=self)
+            "[{obj.database}].[{obj.table_name}]"
+            "(id:{obj.id})").format(obj=self)
 
     @property
     def full_name(self):
-        return "[{self.database}].[{self.table_name}]".format(self=self)
+        return "[{obj.database}].[{obj.table_name}]".format(obj=self)
 
     @property
     def dttm_cols(self):
@@ -472,11 +476,11 @@ def explore_url(self):
         if self.default_endpoint:
             return self.default_endpoint
         else:
-            return "/caravel/explore/{self.type}/{self.id}/".format(self=self)
+            return "/caravel/explore/{obj.type}/{obj.id}/".format(obj=self)
 
     @property
     def table_link(self):
-        return '<a href="{self.explore_url}">{self.table_name}</a>'.format(self=self)
+        return '<a href="{obj.explore_url}">{obj.table_name}</a>'.format(obj=self)
 
     @property
     def metrics_combo(self):
@@ -816,9 +820,9 @@ def get_pydruid_client(self):
 
     def refresh_datasources(self):
         endpoint = (
-            "http://{self.coordinator_host}:{self.coordinator_port}/"
-            "{self.coordinator_endpoint}/datasources"
-        ).format(self=self)
+            "http://{obj.coordinator_host}:{obj.coordinator_port}/"
+            "{obj.coordinator_endpoint}/datasources"
+        ).format(obj=self)
 
         datasources = json.loads(requests.get(endpoint).text)
         for datasource in datasources:
@@ -862,8 +866,8 @@ def name(self):
     @property
     def perm(self):
         return (
-            "[{self.cluster_name}].[{self.datasource_name}]"
-            "(id:{self.id})").format(self=self)
+            "[{obj.cluster_name}].[{obj.datasource_name}]"
+            "(id:{obj.id})").format(obj=self)
 
     @property
     def url(self):
@@ -878,17 +882,17 @@ def link(self):
     @property
     def full_name(self):
         return (
-            "[{self.cluster_name}]."
-            "[{self.datasource_name}]").format(self=self)
+            "[{obj.cluster_name}]."
+            "[{obj.datasource_name}]").format(obj=self)
 
     def __repr__(self):
         return self.datasource_name
 
     @property
     def datasource_link(self):
-        url = "/caravel/explore/{self.type}/{self.id}/".format(self=self)
-        return '<a href="{url}">{self.datasource_name}</a>'.format(
-            url=url, self=self)
+        url = "/caravel/explore/{obj.type}/{obj.id}/".format(obj=self)
+        return '<a href="{url}">{obj.datasource_name}</a>'.format(
+            url=url, obj=self)
 
     def get_metric_obj(self, metric_name):
         return [
diff --git a/caravel/utils.py b/caravel/utils.py
index a67ea650f224b..05fb32528746a 100644
--- a/caravel/utils.py
+++ b/caravel/utils.py
@@ -1,7 +1,10 @@
 """Utility functions used across Caravel"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 from datetime import datetime
-import hashlib
 import functools
 import json
 import logging
@@ -133,43 +136,6 @@ def process_result_value(self, value, dialect):
         return value
 
 
-class ColorFactory(object):
-
-    """Used to generated arrays of colors server side"""
-
-    BNB_COLORS = [
-        # rausch    hackb      kazan      babu      lima        beach     barol
-        '#ff5a5f', '#7b0051', '#007A87', '#00d1c1', '#8ce071', '#ffb400', '#b4a76c',
-        '#ff8083', '#cc0086', '#00a1b3', '#00ffeb', '#bbedab', '#ffd266', '#cbc29a',
-        '#ff3339', '#ff1ab1', '#005c66', '#00b3a5', '#55d12e', '#b37e00', '#988b4e',
-    ]
-
-    def __init__(self, hash_based=False):
-        self.d = {}
-        self.hash_based = hash_based
-
-    def get(self, s):
-        """Gets a color from a string and memoize the association
-
-        >>> cf = ColorFactory()
-        >>> cf.get('item_1')
-        '#ff5a5f'
-        >>> cf.get('item_2')
-        '#7b0051'
-        >>> cf.get('item_1')
-        '#ff5a5f'
-        """
-        if self.hash_based:
-            s = s.encode('utf-8')
-            h = hashlib.md5(s)
-            i = int(h.hexdigest(), 16)
-        else:
-            if s not in self.d:
-                self.d[s] = len(self.d)
-            i = self.d[s]
-        return self.BNB_COLORS[i % len(self.BNB_COLORS)]
-
-
 def init(caravel):
     """Inits the Caravel application with security roles and such"""
     db = caravel.db
diff --git a/caravel/views.py b/caravel/views.py
index 267957c89d226..8ab2fc8b292ce 100644
--- a/caravel/views.py
+++ b/caravel/views.py
@@ -1,4 +1,8 @@
 """Flask web views for Caravel"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 from datetime import datetime
 import json
diff --git a/caravel/viz.py b/caravel/viz.py
index 20224dc446935..d3b0f3f953f1d 100644
--- a/caravel/viz.py
+++ b/caravel/viz.py
@@ -3,6 +3,10 @@
 These objects represent the backend of all the visualizations that
 Caravel can render.
 """
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
 from collections import OrderedDict, defaultdict
 from datetime import datetime, timedelta
@@ -409,7 +413,7 @@ def get_data(self):
             na_rep='',
             classes=(
                 "dataframe table table-striped table-bordered "
-                "table-condensed table-hover"))
+                "table-condensed table-hover").split(" "))
 
 
 class MarkupViz(BaseViz):