Use setuptools_scm to get the version from the git tag

brainzutils/__init__.py

@@ -1 +1,7 @@
-__version__ = '1.14.1'
+from pkg_resources import get_distribution, DistributionNotFound
+
+try:
+    __version__ = get_distribution(__name__).version
+except DistributionNotFound:
+     # package is not installed
+    pass

setup.py

@@ -1,15 +1,15 @@
 #!/usr/bin/env python
 
 from setuptools import setup, find_packages
-from brainzutils import __version__
 
 setup(
     name="brainzutils",
-    version=__version__,
     description="Python tools for MetaBrainz projects",
     author="MetaBrainz Foundation",
     author_email="support@metabrainz.org",
     py_modules=["brainzutils"],
     packages=find_packages(),
+    use_scm_version=True,
+    setup_requires=['setuptools_scm'],
     install_requires=open("requirements.txt").read().split(),
 )