diff --git a/setup.py b/setup.py
index c75e4173..ab22d39d 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 from setuptools import setup
 import os
 import sys
@@ -37,10 +37,7 @@ def get_version():
 		with open(version_file) as f:
 			return f.read()
 	except:
-		version = '0.0.0'
-		print("Warning: Generating default version", version, file=sys.stderr)
-		print("To override this, please create a file", version_file, "with the tile-generator version in it.", file=sys.stderr)
-		return version
+		return '0.0.0'
 
 setup(
 	name = "tile-generator",
diff --git a/tile_generator/bosh.py b/tile_generator/bosh.py
index d5a0b812..29203f6e 100644
--- a/tile_generator/bosh.py
+++ b/tile_generator/bosh.py
@@ -16,7 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 import os
 import sys
 import errno
diff --git a/tile_generator/build.py b/tile_generator/build.py
index dda3dc83..e1c9daf2 100644
--- a/tile_generator/build.py
+++ b/tile_generator/build.py
@@ -16,7 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 import os
 import sys
 import errno
diff --git a/tile_generator/build_unittest.py b/tile_generator/build_unittest.py
index b3a90679..7b9fd635 100644
--- a/tile_generator/build_unittest.py
+++ b/tile_generator/build_unittest.py
@@ -14,12 +14,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 import unittest
 from . import build
 import sys
 from contextlib import contextmanager
-from io import StringIO
+from StringIO import StringIO
 
 @contextmanager
 def capture_output():
diff --git a/tile_generator/erb.py b/tile_generator/erb.py
index 60e2c5fd..accb69b3 100644
--- a/tile_generator/erb.py
+++ b/tile_generator/erb.py
@@ -16,7 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 import os
 import sys
 import errno
diff --git a/tile_generator/opsmgr.py b/tile_generator/opsmgr.py
index 2a1e2f68..f08ea34c 100644
--- a/tile_generator/opsmgr.py
+++ b/tile_generator/opsmgr.py
@@ -16,7 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 import sys
 import yaml
 import json
diff --git a/tile_generator/opsmgr_unittest.py b/tile_generator/opsmgr_unittest.py
index 0fb1df17..e7bf0aec 100644
--- a/tile_generator/opsmgr_unittest.py
+++ b/tile_generator/opsmgr_unittest.py
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 import unittest
 import mock
 import requests
diff --git a/tile_generator/pcf.py b/tile_generator/pcf.py
index 51665110..e04880ef 100755
--- a/tile_generator/pcf.py
+++ b/tile_generator/pcf.py
@@ -16,8 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# no unicode_literals here because http://click.pocoo.org/python3/
-from __future__ import absolute_import, division, print_function#, unicode_literals
+from __future__ import absolute_import, division, print_function
 import os
 import sys
 import yaml
diff --git a/tile_generator/template.py b/tile_generator/template.py
index b322e244..d53723dd 100644
--- a/tile_generator/template.py
+++ b/tile_generator/template.py
@@ -16,7 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 import os
 import sys
 import errno
diff --git a/tile_generator/tile.py b/tile_generator/tile.py
index 0f30f353..40e6448d 100755
--- a/tile_generator/tile.py
+++ b/tile_generator/tile.py
@@ -16,8 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# no unicode_literals here because http://click.pocoo.org/python3/
-from __future__ import absolute_import, division, print_function#, unicode_literals
+from __future__ import absolute_import, division, print_function
 import click
 import sys
 import os
diff --git a/tile_generator/util.py b/tile_generator/util.py
index 07e2d2d8..d47fb2a2 100644
--- a/tile_generator/util.py
+++ b/tile_generator/util.py
@@ -16,7 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import, division, print_function, unicode_literals
+from __future__ import absolute_import, division, print_function
 import errno
 import os
 import requests