Introduce isort linting

This commit adds isort to the list of development requirements, and
introduces the required changes so that isort checks successfully our
repository. We were already doing a pretty good job, with only some
minor corrections that were required. The lint CI job has also been
updated to run this check.

Signed-off-by: Rodrigo Tobar <rtobar@icrar.org>

.github/workflows/lint.yml

@@ -26,3 +26,5 @@ jobs:
         run: mypy --strict src test
       - name: Run black
         run: black --check .
+      - name: Run isort
+        run: isort --check --diff .

requirements-dev.txt

@@ -1,5 +1,6 @@
 # Keep alphasorted
 black
+isort
 mypy
 pytest
 wheel

setup.py

@@ -21,7 +21,7 @@
 #
 import glob
 
-from setuptools import setup, Extension
+from setuptools import Extension, setup
 
 crcmod_ext = Extension(
     "crc32c._crc32c",

test/test_crc32c.py

@@ -25,7 +25,7 @@
 import os
 import struct
 import warnings
-from typing import Any, Generator, NamedTuple, List
+from typing import Any, Generator, List, NamedTuple
 
 import pytest