Switch to more DRYish version numbering

Author: njsmith

patsy/__init__.py

@@ -8,7 +8,7 @@
 
 import sys
 
-__version__ = "0.2.1+dev"
+from patsy.version import __version__
 
 # Do this first, to make it easy to check for warnings while testing:
 import os

patsy/version.py

@@ -0,0 +1,23 @@
+# This file is part of Patsy
+# Copyright (C) 2011-2014 Nathaniel Smith <[email protected]>
+# See file LICENSE.txt for license information.
+
+# This file must be kept very simple, because it is consumed from several
+# places -- it is imported by patsy/__init__.py, execfile'd by setup.py, etc.
+
+# We use a simple scheme:
+#   1.0.0 -> 1.0.0-dev -> 1.1.0 -> 1.1.0-dev
+# where the -dev versions are never released into the wild, they're just what
+# we stick into the VCS in between releases.
+#
+# This is compatible with PEP 440:
+#   http://legacy.python.org/dev/peps/pep-0440/
+# in a slightly abusive way -- PEP 440 provides no guidance on what version
+# number to use for *unreleased* versions, so we use an "integrator suffix",
+# which is intended to be used for things like Debian's locally patched
+# version, and is not allowed on public index servers. Which sounds about
+# right, actually... Crucially, PEP 440 says that "foo-bar" sorts *after*
+# "foo", which is what we want for a dev version. (Compare to "foo.dev0",
+# which sorts *before* "foo".)
+
+__version__ = "0.2.1-dev"

release-checklist.txt

@@ -5,19 +5,20 @@
   * verify that the ">97% coverage" claim in overview.rst is still true.
   * cd docs; make html -- check that there are no warnings
 * check MANIFEST.in
-* update version in doc/changes.rst, setup.py, patsy/__init__.py
+* update version in doc/changes.rst, patsy/version.py
 * make sure there are no uncommitted changes
 * clone a clean source directory (so as to get a clean checkout
   without killing the expensive-to-recreate .tox dir)
 * python sdist --formats=zip
 * unzip sdist to a clean directory, and run tox in it
 * in original directory: git tag <version> && git push --tags
-* in clean clone: python sdist --formats=zip,gztar upload
+* in clean clone: python sdist --formats=zip
+* twine upload dist/*.zip
 * Go to http://readthedocs.org/dashboard/patsy/versions/, set the new
   version to build and update the default.
 * announce release on:
   [email protected]
   [email protected]
   scipy-dev?
   pypi
-* update version in setup.py, patsy/__init__.py again (add "+dev")
+* update version in patsy/version.py again

setup.py

@@ -14,9 +14,12 @@
 if sys.version_info >= (3,):
     extra["use_2to3"] = True
 
+# defines __version__
+exec(open("patsy/version.py").read())
+
 setup(
     name="patsy",
-    version="0.2.1+dev",
+    version=__version__,
     description=DESC,
     long_description=LONG_DESC,
     author="Nathaniel J. Smith",