Update tox file

.github/workflows/tests.yml

@@ -22,3 +22,5 @@ jobs:
         pip install tox tox-gh-actions
     - name: Test with tox
       run: tox
+      env:
+        TOXENV: ${{ matrix.toxenv }}

tox.ini

@@ -1,20 +1,27 @@
 [tox]
-envlist = flake8,py27,py34,py35,py36,py37,pre-commit,pypy,mypy
+envlist = py{27,36,37,38,39},flake8,pre-commit,mypy
-skipsdist = true
+
+[gh-actions]
+python =
+    2.7: py27
+    3.6: py36
+    3.7: py37
+    3.8: py38
+    3.9: py39
 
 [testenv]
+passenv = *
+usedevelop = True
 deps =
-    .[test]
+    -e.[test]
-    py{35,36,37}: pytest-asyncio
+    py{36,37,38,39}: pytest-asyncio
 setenv =
      PYTHONPATH = .:{envdir}
 commands =
-    py{27,py}: py.test --cov=graphene graphene examples {posargs}
+    py{27}: py.test --cov=graphene graphene examples {posargs}
-    py{35}: py.test --cov=graphene graphene examples tests_asyncio {posargs}
+    py{36,37,38,39}: py.test --cov=graphene graphene examples tests_asyncio tests_py36 {posargs}
-    py{36,37}: py.test --cov=graphene graphene examples tests_asyncio tests_py36 {posargs}
 
 [testenv:pre-commit]
-basepython=python3.7
 deps =
     pre-commit>0.12.0
 setenv =
@@ -34,5 +41,3 @@ deps = flake8
 commands =
     pip install -e .
     flake8 graphene
-
-[pytest]