MAINT cleanup setup.py and tox test for pypy3

Author: ogrisel

setup.py

@@ -6,14 +6,6 @@
 except ImportError:
     from distutils.core import setup
 
-requirements = [
-]
-
-test_requirements = [
-    'pytest',
-    'pytest-cov',
-    'mock'
-]
 
 dist = setup(
     name='cloudpickle',
@@ -22,7 +14,6 @@
     author='Cloudpipe',
     author_email='cloudpipe@googlegroups.com',
     url='https://github.com/cloudpipe/cloudpickle',
-    install_requires=requirements,
     license='LICENSE.txt',
     packages=['cloudpickle'],
     long_description=open('README.md').read(),
@@ -38,7 +29,6 @@
         'Topic :: Software Development :: Libraries :: Python Modules',
         'Topic :: Scientific/Engineering',
         'Topic :: System :: Distributed Computing',
-        ],
+    ],
     test_suite='tests',
-    tests_require=test_requirements
 )

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py26, py27, py33, py34, pypy
+envlist = py26, py27, py33, py34, pypy, pypy3
 
 [testenv]
 deps = -rdev-requirements.txt