Add py37 travis (#231)

* Enable py37 in travis
* Make travis style a bit more consistent

Author: dan98765

.travis.yml

@@ -2,14 +2,17 @@ language: python
 matrix:
   include:
     -  env: TOXENV=py27
+       python: 2.7
     -  env: TOXENV=py34
        python: 3.4
     -  env: TOXENV=py35
        python: 3.5
     -  env: TOXENV=py36
        python: 3.6
-    # -  env: TOXENV=py37
-    #    python: 3.7
+    -  env: TOXENV=py37
+       python: 3.7
+       dist: xenial
+       sudo: true # required workaround for https://github.com/travis-ci/travis-ci/issues/9815
     -  env: TOXENV=pypy
        python: pypy-5.7.1
     -  env: TOXENV=pre-commit

setup.py

@@ -28,7 +28,7 @@
     "pytest-django==2.9.1",
     "pytest-cov==2.3.1",
     "coveralls",
-    "gevent==1.1rc1",
+    "gevent>=1.1rc1",
     "six>=1.10.0",
     "pytest-benchmark==3.0.0",
     "pytest-mock==1.2",
@@ -81,5 +81,5 @@ def run_tests(self):
     install_requires=install_requires,
     tests_require=tests_requires,
     cmdclass={"test": PyTest},
-    extras_require={"gevent": ["gevent==1.1rc1"], "test": tests_requires},
+    extras_require={"gevent": ["gevent>=1.1rc1"], "test": tests_requires},
 )

tox.ini

@@ -4,7 +4,7 @@ envlist = py27,py34,py35,py36,py37,pre-commit,pypy,mypy,docs
 [testenv]
 deps =
     pytest>=2.7.2
-    gevent==1.1rc1
+    gevent>=1.1rc1
     promise>=2.0
     six>=1.10.0
     pytest-mock