- add workaround to setup.py to avoid setuptools issue regarding multiprocessing

when "setup.py test" is run, #96
- add version detection for 0.8, apply this version detection to
test_autogenerate:AutogenRenderTest.test_render_fk_constraint_kwarg
and emit explicit append_constraint() for each FK if not on 0.8 as FKs
do not auto-attach in 0.7, #96
- add a README containing instructions for running tests and setting up
optional database backens, #96

1 files changed, 3 insertions, 2 deletions

diff --git a/alembic/util.py b/alembic/util.py
index 0fe4800..bf2c89d 100644
--- a/alembic/util.py
+++ b/alembic/util.py
@@ -22,10 +22,11 @@ def _safe_int(value):
     try:
         return int(value)
     except:
-        return 0
-_vers = tuple([_safe_int(x) for x in __version__.split(".")])
+        return value
+_vers = tuple([_safe_int(x) for x in re.findall(r'(\d+|[abc]\d)', __version__)])
 sqla_06 = _vers > (0, 6)
 sqla_07 = _vers > (0, 7)
+sqla_08 = _vers >= (0, 8, 0, 'b2')
 if not sqla_06:
     raise CommandError(
             "SQLAlchemy 0.6 or greater is required. "