diff -Nru versiontools-1.9.1/debian/changelog versiontools-1.9.1/debian/changelog
--- versiontools-1.9.1/debian/changelog	2018-04-30 14:24:09.000000000 +0000
+++ versiontools-1.9.1/debian/changelog	2019-07-23 13:16:44.000000000 +0000
@@ -1,3 +1,18 @@
+versiontools (1.9.1-4) unstable; urgency=medium
+
+  [ Ondřej Nový ]
+  * d/control: Remove ancient X-Python-Version field
+  * d/control: Remove ancient X-Python3-Version field
+
+  [ Benjamin Drung ]
+  * Bump Standards-Version to 4.4.0
+  * Update my email address
+  * Switch to debhelper 12
+  * Drop unused Python 2 version
+  * Add autopkgtest to run unit tests
+
+ -- Benjamin Drung <benjamin.drung@cloud.ionos.com>  Tue, 23 Jul 2019 15:16:44 +0200
+
 versiontools (1.9.1-3) unstable; urgency=medium
 
   * Add required dependency on python3-distutils (Closes: #896373)
diff -Nru versiontools-1.9.1/debian/compat versiontools-1.9.1/debian/compat
--- versiontools-1.9.1/debian/compat	2018-04-30 14:24:09.000000000 +0000
+++ versiontools-1.9.1/debian/compat	1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
-11
diff -Nru versiontools-1.9.1/debian/control versiontools-1.9.1/debian/control
--- versiontools-1.9.1/debian/control	2018-04-30 14:24:09.000000000 +0000
+++ versiontools-1.9.1/debian/control	2019-07-23 12:57:39.000000000 +0000
@@ -1,45 +1,17 @@
 Source: versiontools
-Maintainer: Benjamin Drung <benjamin.drung@profitbricks.com>
+Maintainer: Benjamin Drung <benjamin.drung@cloud.ionos.com>
 Section: python
 Priority: optional
-Build-Depends: debhelper (>= 11),
+Build-Depends: debhelper-compat (= 12),
                dh-python,
-               python-all (>= 2.6.6-3~),
-               python-setuptools (>= 0.6b3),
                python3-all,
                python3-distutils,
                python3-setuptools
-X-Python-Version: >= 2.4
-X-Python3-Version: >= 3.0
-Standards-Version: 4.1.4
+Standards-Version: 4.4.0
 Homepage: https://launchpad.net/versiontools
 Vcs-Browser: https://salsa.debian.org/debian/versiontools
 Vcs-Git: https://salsa.debian.org/debian/versiontools.git
 
-Package: python-versiontools
-Architecture: all
-Depends: ${misc:Depends}, ${python:Depends}
-Description: Smart replacement for plain tuple used in __version__ (Python 2)
- versiontools is a Python module providing a smart replacement for plain tuple
- used in __version__. It has following features:
- .
-  * A piece of code that allows you to keep a single version definition inside
-    your package or module. No more hacks in setup.py, no more duplicates in
-    setup.py and somewhere else. Just one version per package.
-  * Version objects can produce nice version strings for released files that
-    are compliant with PEP 386. Releases, alphas, betas, development snaphots.
-    All of those get good version strings out of the box.
-  * Version objects understand the VCS used by your project. Git, Mercurial and
-    Bazaar are supported out of the box. Custom systems can be added by 3rd
-    party plugins.
-  * Version object that compares as a tuple of values and sorts properly.
-  * Zero-dependency install! If all you care about is handling setup() to get
-    nice tarball names then you don’t need to depend on versiontools (no
-    setup_requires, no install_requires!). You will need to bundle a small
-    support module though.
- .
- This is the Python 2 version of the package.
-
 Package: python3-versiontools
 Architecture: all
 Depends: python3-distutils, ${misc:Depends}, ${python3:Depends}
diff -Nru versiontools-1.9.1/debian/rules versiontools-1.9.1/debian/rules
--- versiontools-1.9.1/debian/rules	2015-10-27 15:35:34.000000000 +0000
+++ versiontools-1.9.1/debian/rules	2019-07-23 12:57:55.000000000 +0000
@@ -4,7 +4,7 @@
 #export PYBUILD_TEST_ARGS=-s {dir}/test/
 
 %:
-	dh $@ --buildsystem=pybuild --with python2,python3
+	dh $@ --buildsystem=pybuild --with python3
 
 override_dh_installchangelogs:
 	dh_installchangelogs doc/changes.rst
diff -Nru versiontools-1.9.1/debian/tests/control versiontools-1.9.1/debian/tests/control
--- versiontools-1.9.1/debian/tests/control	1970-01-01 00:00:00.000000000 +0000
+++ versiontools-1.9.1/debian/tests/control	2019-07-23 13:16:32.000000000 +0000
@@ -0,0 +1,4 @@
+Test-Command: for py in $(py3versions -r 2>/dev/null); do cd "$AUTOPKGTEST_TMP"; echo "Testing with $py:"; $py -m unittest -v versiontools.tests; done
+Depends: python3-all, python3-versiontools
+Restrictions: allow-stderr
+Features: test-name=python3-unittest