Patched the d2to1 required to be 1.2.7 like Debian has in the repos.
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 from setuptools import setup
 
 setup(
-    setup_requires=['d2to1>=0.2.9'],
+    setup_requires=['d2to1>=0.2.7'],
     tests_require=['six'],
     d2to1=True,
 
