setup.py will now install gevent if stackless cannot be imported.

goless/__init__.py

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

setup.py

@@ -2,6 +2,14 @@
 
 from goless import version, __author__, __email__, __url__, __license__
 
+# If stackless isn't found, then assume gevent needs to be installed.
+requires = []
+try:
+    # noinspection PyUnresolvedReferences
+    import stackless
+except ImportError:
+    requires.append('gevent>=1.0')
+
 setup(
     name='goless',
     version=version,
@@ -14,6 +22,7 @@
              'threading async gevent go golang',
     url=__url__,
     packages=['goless'],
+    install_requires=requires,
     classifiers=[
         'Development Status :: 4 - Beta',
         'Intended Audience :: Developers',
@@ -22,7 +31,11 @@
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 2.6',
+        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
     ],
     test_suite='tests',
 )