Use versioneer to maintain version.

Author: eriknw

.gitattributes

@@ -0,0 +1 @@
+toolz/_version.py export-subst

MANIFEST.in

@@ -1,3 +1,5 @@
 include LICENSE.txt
 
 include toolz/tests/*.py
+include versioneer.py
+include toolz/_version.py

doc/source/install.rst

@@ -11,4 +11,4 @@ three ways:
 
 1.  Toolz is pure Python
 2.  Toolz relies only on the standard library
-3.  Toolz simultaneously supports Python versions 3.4+ and PyPy
+3.  Toolz simultaneously supports Python versions 3.5+ and PyPy

setup.cfg

@@ -0,0 +1,7 @@
+[versioneer]
+VCS = git
+style = pep440
+versionfile_source = toolz/_version.py
+versionfile_build = toolz/_version.py
+tag_prefix =
+parentdir_prefix = toolz-

setup.py

@@ -2,10 +2,11 @@
 
 from os.path import exists
 from setuptools import setup
-import toolz
+import versioneer
 
 setup(name='toolz',
-      version=toolz.__version__,
+      version=versioneer.get_version(),
+      cmdclass=versioneer.get_cmdclass(),
       description='List processing tools and functional utilities',
       url='https://github.com/pytoolz/toolz/',
       author='https://raw.github.com/pytoolz/toolz/master/AUTHORS.md',

toolz/__init__.py

@@ -21,4 +21,6 @@
 
 functoolz._sigs.create_signature_registry()
 
-__version__ = '0.10.0'
+from ._version import get_versions
+__version__ = get_versions()['version']
+del get_versions