Remove support for Python 3.8

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:

README.md

@@ -23,7 +23,7 @@ isort is a Python utility / library to sort imports alphabetically and
 automatically separate into sections and by type. It provides a command line
 utility, Python library and [plugins for various
 editors](https://github.com/pycqa/isort/wiki/isort-Plugins) to
-quickly sort all your imports. It requires Python 3.8+ to run but
+quickly sort all your imports. It requires Python 3.9+ to run but
 supports formatting Python 2 code too.
 
 - [Try isort now from your browser!](https://pycqa.github.io/isort/docs/quick_start/0.-try.html)

docs/configuration/black_compatibility.md

@@ -34,7 +34,6 @@ language: python
 python:
   - "3.10"
   - "3.9"
-  - "3.8"
 
 install:
   - pip install -r requirements-dev.txt

docs/configuration/github_action.md

@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: 3.9
       - uses: isort/isort-action@master
         with:
             requirementsFiles: "requirements.txt requirements-test.txt"

docs/contributing/1.-contributing-guide.md

@@ -14,7 +14,7 @@ Account Requirements:
 
 Base System Requirements:
 
-- Python3.8+
+- Python3.9+
 - poetry
 - bash or a bash compatible shell (should be auto-installed on Linux / Mac)
   - WSL users running Ubuntu may need to install Python's venv module even after installing Python.

isort/api.py

@@ -363,6 +363,9 @@ def _file_output_stream_context(filename: Union[str, Path], source_file: File) -
         yield output_stream
 
 
+# Ignore DeepSource cyclomatic complexity check for this function. It is one
+# the main entrypoints so sort of expected to be complex.
+# skipcq: PY-R1000
 def sort_file(
     filename: Union[str, Path],
     extension: Optional[str] = None,
@@ -466,12 +469,9 @@ def sort_file(
                             if not config.quiet:
                                 print(f"Fixing {source_file.path}")
                     finally:
-                        try:  # Python 3.8+: use `missing_ok=True` instead of try except.
-                            if not config.overwrite_in_place:  # pragma: no branch
-                                tmp_file = _tmp_file(source_file)
-                                tmp_file.unlink()
-                        except FileNotFoundError:
-                            pass  # pragma: no cover
+                        if not config.overwrite_in_place:  # pragma: no branch
+                            tmp_file = _tmp_file(source_file)
+                            tmp_file.unlink(missing_ok=True)
                 else:
                     changed = sort_stream(
                         input_stream=source_file.stream,

isort/settings.py

@@ -252,14 +252,7 @@ class _Config:
     def __post_init__(self) -> None:
         py_version = self.py_version
         if py_version == "auto":  # pragma: no cover
-            if sys.version_info.major == 2 and sys.version_info.minor <= 6:
-                py_version = "2"
-            elif sys.version_info.major == 3 and (
-                sys.version_info.minor <= 5 or sys.version_info.minor >= 12
-            ):
-                py_version = "3"
-            else:
-                py_version = f"{sys.version_info.major}{sys.version_info.minor}"
+            py_version = f"{sys.version_info.major}{sys.version_info.minor}"
 
         if py_version not in VALID_PY_TARGETS:
             raise ValueError(

isort/setuptools_commands.py

@@ -4,13 +4,13 @@
 from typing import Any, Dict, Iterator, List
 from warnings import warn
 
-import setuptools  # type: ignore
+import setuptools
 
 from . import api
 from .settings import DEFAULT_CONFIG
 
 
-class ISortCommand(setuptools.Command):  # type: ignore
+class ISortCommand(setuptools.Command):
     """The :class:`ISortCommand` class is used by setuptools to perform
     imports checks on registered modules.
     """

pyproject.toml

@@ -20,7 +20,6 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -40,7 +39,7 @@ include = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8.0"
+python = ">=3.9.0"
 colorama = {version = ">=0.4.6", optional = true}
 
 [tool.poetry.extras]
@@ -80,7 +79,7 @@ mypy-extensions = ">=0.4.3"
 pre-commit = ">=2.13.0"
 pytest-benchmark = ">=3.4.1"
 toml = ">=0.10.2"
-types-pkg-resources = ">=0.1.2"
+types-setuptools = ">=70.0.0.20240523"
 types-colorama = ">=0.4.2"
 types-toml = ">=0.1.3"
 vulture = ">=1.0"
@@ -138,7 +137,7 @@ requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
 
 [tool.mypy]
-python_version = 3.8
+python_version = 3.9
 strict = true
 follow_imports = "silent"
 exclude = "isort/_vendored|tests/unit/example_projects|tests/unit/example_crlf_file.py"

scripts/docker.sh

@@ -3,7 +3,7 @@ set -ux
 
 result=0
 
-for ver in {3.8,3.9,3.10}; do
+for ver in {3.9,3.10}; do
 	# latest tag will override after each build, leaving only the newest python version tagged
 	docker build ./ --build-arg VERSION=$ver -t "isort:$ver" -t "isort:latest" && docker run "isort:$ver"
 	result=$(( $? + $result ))

scripts/lint.sh

@@ -3,7 +3,7 @@ set -euxo pipefail
 
 poetry run cruft check
 poetry run mypy -p isort -p tests
-poetry run black --target-version py38 --check .
+poetry run black --target-version py39 --check .
 poetry run isort --profile hug --check --diff isort/ tests/
 poetry run isort --profile hug --check --diff example_*/
 poetry run flake8 isort/ tests/

tests/unit/test_setuptools_command.py

@@ -3,7 +3,7 @@
 
 def test_isort_command_smoke(src_dir):
     """A basic smoke test for the setuptools_commands command"""
-    from distutils.dist import Distribution
+    from setuptools.dist import Distribution
 
     command = setuptools_commands.ISortCommand(Distribution())
     command.distribution.packages = ["isort"]