Added isort to setup, makefile and tox

.circleci/config.yml

@@ -49,7 +49,9 @@ common: &common
           - cache-v1-{{ arch }}-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
     - run:
         name: install dependencies
-        command: pip install --user tox
+        command: |
+           python -m pip install --upgrade pip
+           python -m pip install tox --upgrade
     - run:
         name: run tox
         command: python -m tox -r

.isort.cfg

@@ -0,0 +1,15 @@
+[settings]
+profile=black
+force_grid_wrap=1
+multi_line_output=3
+honor_noqa=true
+float_to_top=true
+combine_as_imports=true
+force_sort_within_sections=true
+include_trailing_comma=true
+extra_standard_library=pytest
+known_first_party=eth
+line_length=88
+use_parentheses=true
+# skip `__init__.py` files because sometimes order of initialization is important
+skip=__init__.py

Makefile

@@ -23,7 +23,11 @@ clean-pyc:
 	find . -name '__pycache__' -exec rm -rf {} +
 
 lint:
-	tox -e lint
+	tox run -e lint
+
+lint-roll:
+	isort eth 
+	$(MAKE) lint
 
 test:
 	py.test --tb native tests

setup.py

@@ -47,6 +47,7 @@
         "pydocstyle>=6.0.0",
         "types-setuptools",
         "importlib-metadata<5.0;python_version<'3.8'",
+        "isort==5.11.4"
     ],
     'benchmark': [
         "termcolor>=1.1.0,<2.0.0",
@@ -72,7 +73,7 @@
         "idna==2.7",
         # idna 2.7 is not supported by requests 2.18
         "requests>=2.20,<3",
-        "tox==2.7.0",
+        "tox>=4.0.0",
         "twine",
     ],
 }