Enforce import sorting

dev_requirements.txt

@@ -1,5 +1,6 @@
 black
 flake8
+isort
 mypy
 pytest
 pytest-cov

setup.cfg

@@ -28,6 +28,16 @@ pyhdfs = py.typed
 [egg_info]
 tag_build = dev
 
+[tool:isort]
+case_sensitive = true
+force_grid_wrap = 0
+force_single_line = true
+include_trailing_comma = true
+line_length = 88
+multi_line_output = 3
+order_by_type = false
+use_parentheses = true
+
 [tool:pytest]
 addopts = --random --tb=short --cov pyhdfs --cov test_pyhdfs --cov-report html --cov-report term
 norecursedirs = env

test_pyhdfs.py

@@ -5,11 +5,11 @@
 import subprocess
 import tempfile
 import unittest
-from unittest import mock
 from http import HTTPStatus
 from typing import Any
 from typing import Callable
 from typing import cast
+from unittest import mock
 
 import pytest
 import requests
@@ -606,5 +606,8 @@ def test_black(self) -> None:
     def test_flake8(self) -> None:
         subprocess.check_call(["flake8"], cwd=os.path.dirname(__file__))
 
+    def test_isort(self) -> None:
+        subprocess.check_call(["isort", "--check-only"], cwd=os.path.dirname(__file__))
+
     def test_mypy(self) -> None:
         subprocess.check_call(["mypy", os.path.dirname(__file__)])