Prepare for python 3.7 (#5)

* Prepare for python 3.7
* Python 3.7 gevent is in beta state, pin >= last beta

.travis.yml

@@ -6,8 +6,9 @@ python:
 - 3.4
 - 3.5
 - &mainstream_python 3.6
-- pypy2.7-5.8.0
-- pypy3.5-5.8.0
+- pypy
+- pypy3.5
+- 3.7-dev
 install:
 - &upgrade_python_toolset pip install --upgrade pip setuptools wheel
 - pip install tox-travis

CI_REQUIREMENTS.txt

@@ -1,5 +1,6 @@
 six
-typing >= 3.6
+typing >= 3.6 ; python_version < "3.7"
 mock; python_version == "2.7"
 futures>=3.1; python_version == "2.7"
-gevent >= 1.2
+gevent >= 1.2 ; python_version < "3.7"
+gevent >= 1.3.b1 ; python_version >= "3.7"

README.rst

@@ -41,6 +41,7 @@ Pros:
     Python 3.4
     Python 3.5
     Python 3.6
+    Python 3.7
     PyPy
     PyPy3 3.5+
     Jyton 2.7
@@ -257,18 +258,7 @@ Basic usage example:
 Testing
 =======
 The main test mechanism for the package `threaded` is using `tox`.
-Test environments available:
-
-::
-
-    pep8
-    py27
-    py34
-    py35
-    py36
-    pypy
-    pypy3
-    pylint
+Available environments can be collected via `tox -l`
 
 CI systems
 ==========

setup.py

@@ -225,6 +225,7 @@ def get_simple_vars_from_src(src):
     'Programming Language :: Python :: 3.4',
     'Programming Language :: Python :: 3.5',
     'Programming Language :: Python :: 3.6',
+    'Programming Language :: Python :: 3.7',
 
     'Programming Language :: Python :: Implementation :: CPython',
     'Programming Language :: Python :: Implementation :: PyPy',

tox.ini

@@ -5,7 +5,7 @@
 
 [tox]
 minversion = 2.0
-envlist = pep8, pep257, py{27,34,35,36,py,py3}, pylint, docs, bandit, py{34,35,36}-nocov,
+envlist = pep8, pep257, py{27,34,35,36,37,py,py3}, pylint, docs, bandit, py{34,35,36}-nocov,
 skipsdist = True
 skip_missing_interpreters = True
 
@@ -53,9 +53,10 @@ commands = {posargs:}
 
 [tox:travis]
 2.7 = install, py27,
-3.4 = install, py34,
-3.5 = install, py35,
-3.6 = install, py36,
+3.4 = py34,
+3.5 = py35,
+3.6 = py36,
+3.7 = install, py37,
 pypy = install, pypy,
 pypy3 = install, pypy3,