Version bump.

setup.py will install gevent if stackless is not imported *and* we're using Python2.
It was too difficult to install gevent from source as part of setup.py,
so we just warn instead.
Adjusted tox to reflect the less need for explicit dependencies.
Address #32, which is fallout from #31

goless/__init__.py

@@ -22,7 +22,7 @@
 from .selecting import dcase, rcase, scase, select
 
 
-version_info = 0, 7, 1
+version_info = 0, 7, 2
 version = '.'.join([str(v) for v in version_info])
 
 __version__ = version

setup.py

@@ -1,4 +1,6 @@
 from setuptools import setup
+import sys
+import warnings
 
 from goless import version, __author__, __email__, __url__, __license__
 
@@ -8,7 +10,16 @@
     # noinspection PyUnresolvedReferences
     import stackless
 except ImportError:
-    requires.append('gevent>=1.0')
+    # See https://github.com/rgalanakis/goless/issues/21
+    # for why we need this (waiting for new gevent version).
+    if sys.version_info[0] == 3:
+        warnings.warn(
+            'You will need to install gevent from GitHub to use goless with '
+            'gevent under Python3. Run something like '
+            '"pip install git+https://github.com/surfly/gevent.git#gevent-egg"'
+        )
+    else:
+        requires.append('gevent>=1.0')
 
 setup(
     name='goless',

tox.ini

@@ -9,25 +9,23 @@ deps =
     mock
     nose
 setenv =
-    GOLESS_BACKEND = gevent
+    GOLESS_BACKEND =
 
 [testenv:26gevent]
 basepython = python2.6
 deps =
     {[testenv]deps}
     unittest2
-    gevent
 
 [testenv:27gevent]
-deps =
-    {[testenv]deps}
-    gevent
 
 [testenv:pypygevent]
 basepython = pypy
 deps =
     {[testenv]deps}
     git+https://github.com/surfly/gevent.git#gevent-egg
+setenv =
+    GOLESS_BACKEND = gevent
 
 ; See https://github.com/rgalanakis/goless/issues/21
 ; for why we need this hackery (waiting for new gevent version).
@@ -36,8 +34,6 @@ basepython = python3.3
 commands =
     pip install git+https://github.com/surfly/gevent.git#gevent-egg
     nosetests ./tests
-setenv =
-    GOLESS_BACKEND =
 deps =
     {[testenv]deps}
     cython
@@ -48,8 +44,6 @@ basepython = python3.4
 commands =
     pip install git+https://github.com/surfly/gevent.git#gevent-egg
     nosetests ./tests
-setenv =
-    GOLESS_BACKEND =
 deps =
     {[testenv]deps}
     cython