Drop support for Python 3.4 because it is EOL (#963)

Author: cclauss

.travis.yml

@@ -3,8 +3,6 @@ matrix:
   include:
     - env: TOXENV=py27
       python: 2.7
-    - env: TOXENV=py34
-      python: 3.4
     - env: TOXENV=py35
       python: 3.5
     - env: TOXENV=py36

README.md

@@ -168,7 +168,7 @@ You can also run the benchmarks with:
 py.test graphene --benchmark-only
 ```
 
-Graphene supports several versions of Python. To make sure that changes do not break compatibility with any of those versions, we use `tox` to create virtualenvs for each python version and run tests with that version. To run against all python versions defined in the `tox.ini` config file, just run:
+Graphene supports several versions of Python. To make sure that changes do not break compatibility with any of those versions, we use `tox` to create virtualenvs for each Python version and run tests with that version. To run against all Python versions defined in the `tox.ini` config file, just run:
 
 ```sh
 tox
@@ -180,7 +180,7 @@ If you wish to run against a specific version defined in the `tox.ini` file:
 tox -e py36
 ```
 
-Tox can only use whatever versions of python are installed on your system. When you create a pull request, Travis will also be running the same tests and report the results, so there is no need for potential contributors to try to install every single version of python on their own system ahead of time. We appreciate opening issues and pull requests to make graphene even more stable & useful!
+Tox can only use whatever versions of Python are installed on your system. When you create a pull request, Travis will also be running the same tests and report the results, so there is no need for potential contributors to try to install every single version of Python on their own system ahead of time. We appreciate opening issues and pull requests to make graphene even more stable & useful!
 
 ### Building Documentation
 

README.rst

@@ -308,8 +308,8 @@ You can also run the benchmarks with:
 
 Graphene supports several versions of Python. To make sure that changes
 do not break compatibility with any of those versions, we use ``tox`` to
-create virtualenvs for each python version and run tests with that
-version. To run against all python versions defined in the ``tox.ini``
+create virtualenvs for each Python version and run tests with that
+version. To run against all Python versions defined in the ``tox.ini``
 config file, just run:
 
 .. code:: sh
@@ -323,10 +323,10 @@ file:
 
     tox -e py36
 
-Tox can only use whatever versions of python are installed on your
+Tox can only use whatever versions of Python are installed on your
 system. When you create a pull request, Travis will also be running the
 same tests and report the results, so there is no need for potential
-contributors to try to install every single version of python on their
+contributors to try to install every single version of Python on their
 own system ahead of time. We appreciate opening issues and pull requests
 to make graphene even more stable & useful!
 

setup.py

@@ -76,10 +76,9 @@ def run_tests(self):
         "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.3",
-        "Programming Language :: Python :: 3.4",
         "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",

tox.ini

@@ -9,7 +9,7 @@ deps =
 setenv =
      PYTHONPATH = .:{envdir}
 commands =
-    py{27,34,py}: py.test --cov=graphene graphene examples {posargs}
+    py{27,py}: py.test --cov=graphene graphene examples {posargs}
     py{35,36,37}: py.test --cov=graphene graphene examples tests_asyncio {posargs}
 
 [testenv:pre-commit]