try to use pkg_resources to get version of dedupe
@@ -56,9 +56,11 @@ copyright = u'2017, Forest Gregg, Derek Eder, and contributors'
# built documents.
#
# The short X.Y version.
-version = '1.6'
+import pkg_resources
+version = pkg_resources.require("dedupe")[0].version
+
# The full version, including alpha/beta/rc tags.
-release = '1.6.7'
+#release = '1.6.7'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
