Include setup.py in black formatting

Makefile

@@ -14,7 +14,7 @@ test: tests  # Alias test -> tests
 
 .PHONY: format
 format:
-	black --exclude "/migrations/" graphene_django examples
+	black --exclude "/migrations/" graphene_django examples setup.py
 
 .PHONY: lint
 lint:

setup.py

@@ -25,10 +25,7 @@ tests_require = [
 ] + rest_framework_require
 
 
-dev_requires = [
-    "black==19.3b0",
-    "flake8==3.7.7",
-] + tests_require
+dev_requires = ["black==19.3b0", "flake8==3.7.7"] + tests_require
 
 setup(
     name="graphene-django",
@@ -64,7 +61,11 @@ setup(
     setup_requires=["pytest-runner"],
     tests_require=tests_require,
     rest_framework_require=rest_framework_require,
-    extras_require={"test": tests_require, "rest_framework": rest_framework_require, "dev": dev_requires},
+    extras_require={
+        "test": tests_require,
+        "rest_framework": rest_framework_require,
+        "dev": dev_requires,
+    },
     include_package_data=True,
     zip_safe=False,
     platforms="any",

tox.ini

@@ -30,7 +30,7 @@ commands = {posargs:py.test --cov=graphene_django graphene_django examples}
 basepython = python3.7
 deps = black
 commands  =
-    black --exclude "/migrations/" graphene_django examples --check
+    black --exclude "/migrations/" graphene_django examples setup.py --check
 
 [testenv:flake8]
 basepython = python3.7