v3.0 - remove Python 2.x from build (#983)

* Change travis to only compile for p3.6+

* Changed tox to only run Python 3.6+

* Changed library classifiers to reflect support in Python 3.6+

* Changed version to 3.0.0 development

In [15]: get_version((3, 0, 0, "alpha", 0))
Out[15]: '3.0.dev20190601212304'

.travis.yml

@@ -1,18 +1,12 @@
 language: python
 matrix:
   include:
-    - env: TOXENV=py27
-      python: 2.7
-    - env: TOXENV=py35
-      python: 3.5
     - env: TOXENV=py36
       python: 3.6
     - env: TOXENV=py37
       python: 3.7
       dist: xenial
       sudo: true
-    - env: TOXENV=pypy
-      python: pypy-5.7.1
     - env: TOXENV=pre-commit
       python: 3.6
     - env: TOXENV=mypy

graphene/__init__.py

@@ -43,7 +43,7 @@
 from .utils.module_loading import lazy_import
 
 
-VERSION = (2, 1, 4, "final", 0)
+VERSION = (3, 0, 0, "alpha", 0)
 
 __version__ = get_version(VERSION)
 

setup.py

@@ -73,13 +73,8 @@ def run_tests(self):
         "Development Status :: 3 - Alpha",
         "Intended Audience :: Developers",
         "Topic :: Software Development :: Libraries",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: Implementation :: PyPy",
     ],
     keywords="api graphql protocol rest relay graphene",
     packages=find_packages(exclude=["tests", "tests.*", "examples"]),

tox.ini

@@ -1,16 +1,14 @@
 [tox]
-envlist = flake8,py27,py34,py35,py36,py37,pre-commit,pypy,mypy
+envlist = flake8,py36,py37,pre-commit,mypy
 skipsdist = true
 
 [testenv]
 deps =
     .[test]
-    py{35,36,37}: pytest-asyncio
+    py{36,37}: pytest-asyncio
 setenv =
      PYTHONPATH = .:{envdir}
 commands =
-    py{27,py}: py.test --cov=graphene graphene examples {posargs}
-    py{35}: py.test --cov=graphene graphene examples tests_asyncio {posargs}
     py{36,37}: py.test --cov=graphene graphene examples tests_asyncio tests_py36 {posargs}
 
 [testenv:pre-commit]