@@ -13,3 +13,4 @@ dist/
 MANIFEST
 .vagrant/
 dj_local_conf.json
+build/
@@ -5,6 +5,7 @@ env:
 python:
   - "3.4"
   - "3.5"
+  - "3.6"
 services: mysql
 before_install:
   - sudo apt-get -qq update
 
@@ -5,23 +5,23 @@ all:
 	@echo 'make wheel                              Creates Wheel distribution            '
 	@echo 'make pypi                               Package and upload to PyPI            '
 	@echo 'make pypitest                           Package and upload to PyPI test server'
-	@echo 'make purge                              Remove all build related directories  '
+	@echo 'make clean                              Remove all build related directories  '
 
 
 sdist:
-	python setup.py sdist >/dev/null 2>&1
+	python3 setup.py sdist >/dev/null 2>&1
 
 wheel:
-	python setup.py bdist_wheel >/dev/null 2>&1
+	python3 setup.py bdist_wheel >/dev/null 2>&1
 
-pypi:purge sdist wheel
+pypi:clean sdist wheel
 	twine upload dist/*
 
-pypitest: purge sdist wheel
+pypitest: clean sdist wheel
 	twine upload -r pypitest dist/*
 
-purge:
-	rm -rf dist && rm -rf build && rm -rf datajoint.egg-info
+clean:
+	rm -rf dist && rm -rf build && rm -rf *.egg-info
 
 
 
 
@@ -14,9 +14,9 @@
 
 import logging
 import os
+from .version import __version__
 
 __author__ = "Dimitri Yatsenko, Edgar Y. Walker, and Fabian Sinz at Baylor College of Medicine"
-__version__ = "0.4.7"
 __date__ = "January 24, 2017"
 __all__ = ['__author__', '__version__',
            'config', 'conn', 'kill', 'BaseRelation',
 
@@ -0,0 +1 @@
+__version__ = "0.4.9"
@@ -1,6 +1,6 @@
 numpy
 scipy
-pymysql
+pymysql>=0.7.2
 pyparsing
 networkx
 matplotlib
@@ -1,17 +1,25 @@
 #!/usr/bin/env python
 from setuptools import setup, find_packages
 from os import path
+import sys
+
+if sys.version_info < (3,4):
+    sys.exit('DataJoint is only supported on Python 3.4 or higher')
 
 here = path.abspath(path.dirname(__file__))
 
-# with open(path.join(here, 'VERSION')) as version_file:
-#   version = version_file.read().strip()
 long_description = "An object-relational mapping and relational algebra to facilitate data definition and data manipulation in MySQL databases."
 
+# read in version number
+with open(path.join(here, 'datajoint', 'version.py')) as f:
+    exec(f.read())
+
+with open(path.join(here, 'requirements.txt')) as f:
+    requirements = f.read().split()
 
 setup(
     name='datajoint',
-    version='0.1.0.dev5',
+    version=__version__,
     description="An ORM with closed relational algebra",
     long_description=long_description,
     author='Dimitri Yatsenko',
@@ -20,12 +28,10 @@
     url='https://github.com/datajoint/datajoint-python',
     keywords='database organization',
     packages=find_packages(exclude=['contrib', 'docs', 'tests*']),
-    install_requires=['numpy', 'pyparsing', 'networkx', 'matplotlib', 'pymysql>=0.7.2'],
+    install_requires=requirements,
     classifiers=[
         'Development Status :: 4 - Beta',
         'Intended Audience :: Science/Research',
         'Programming Language :: Python :: 3 :: Only',
-        'License :: OSI Approved :: LGPL License',
-        'Topic :: Database :: Front-Ends',
     ],
 )