chore: Drop support for Python 3.7

.flake8

@@ -1,7 +1,4 @@
 [flake8]
-ignore = W503, C901, ANN101
-max-line-length = 88
+select = DAR
 exclude = copier_template
-max-complexity = 10
 docstring-convention = google
-allow-star-arg-any = true

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
       - uses: actions/checkout@v4

.pre-commit-config.yaml

@@ -17,33 +17,17 @@ repos:
     exclude: (copier_template/.*|docs/.*|samples/.*\.json)
   - id: trailing-whitespace
 
-- repo: https://github.com/psf/black
-  rev: 23.9.1
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  rev: v0.1.0
   hooks:
-  - id: black
-    exclude: |
-        (?x)^(
-            copier_template/.*
-        )$
-
-- repo: https://github.com/pycqa/isort
-  rev: 5.12.0
-  hooks:
-  - id: isort
-    exclude: (copier_template/.*)
+  - id: ruff
+    args: [--fix, --exit-non-zero-on-fix, --show-fixes]
+  - id: ruff-format
 
 - repo: https://github.com/pycqa/flake8
   rev: 6.1.0
   hooks:
   - id: flake8
     additional_dependencies:
     - darglint==1.8.1
-    - flake8-annotations==2.9.0
-    - flake8-docstrings==1.6.0
     files: 'meltano/edk/.*'
-
-- repo: https://github.com/asottile/pyupgrade
-  rev: v3.14.0
-  hooks:
-  - id: pyupgrade
-    args: [--py37-plus, --keep-mock]

docs/conf.py

@@ -29,7 +29,6 @@
     "sphinx.ext.autodoc",
     "sphinx.ext.napoleon",
     "sphinx.ext.autosummary",
-    "sphinx_rtd_theme",
     "sphinx_copybutton",
     "myst_parser",
 ]

meltano/edk/extension.py

@@ -24,7 +24,11 @@ class DescribeFormat(str, Enum):
 class ExtensionBase(metaclass=ABCMeta):
     """Basic extension interface that must be implemented by all extensions."""
 
-    def pre_invoke(self, invoke_name: str | None, *invoke_args: ExecArg) -> None:
+    def pre_invoke(  # noqa: B027
+        self,
+        invoke_name: str | None,
+        *invoke_args: ExecArg,
+    ) -> None:
         """Called before the extension is invoked.
 
         Args:
@@ -33,7 +37,7 @@ def pre_invoke(self, invoke_name: str | None, *invoke_args: ExecArg) -> None:
         """
         pass
 
-    def initialize(self, force: bool = False) -> None:
+    def initialize(self, force: bool = False) -> None:  # noqa: B027
         """Initialize the extension.
 
         This method is called on-demand by the user to initialize the extension.
@@ -56,7 +60,7 @@ def invoke(self, command_name: str | None, *command_args: ExecArg) -> None:
         """
         pass
 
-    def post_invoke(self, invoked_name: str | None, *invoked_args: ExecArg) -> None:
+    def post_invoke(self, invoked_name: str | None, *invoked_args: ExecArg) -> None:  # noqa: B027
         """Called after the extension is invoked.
 
         Args:

meltano/edk/process.py

@@ -4,7 +4,7 @@
 import asyncio
 import os
 import subprocess
-from typing import IO, Any
+import typing as t
 
 import structlog
 
@@ -40,7 +40,7 @@ def __init__(
         self,
         bin: str,
         cwd: str | None = None,
-        env: dict[str, Any] | None = None,
+        env: dict[str, t.Any] | None = None,
     ) -> None:
         """Minimal invoker for running subprocesses.
 
@@ -56,10 +56,10 @@ def __init__(
     def run(
         self,
         *args: ExecArg,
-        stdout: None | int | IO = subprocess.PIPE,
-        stderr: None | int | IO = subprocess.PIPE,
+        stdout: None | int | t.IO = subprocess.PIPE,
+        stderr: None | int | t.IO = subprocess.PIPE,
         text: bool = True,
-        **kwargs: Any,
+        **kwargs: t.Any,
     ) -> subprocess.CompletedProcess:
         """Run a subprocess. Simple wrapper around subprocess.run.
 

pyproject.toml

@@ -16,7 +16,6 @@ classifiers = [
     "Intended Audience :: Developers",
     "License :: OSI Approved :: Apache Software License",
     "Operating System :: OS Independent",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
@@ -42,7 +41,7 @@ packages = [
 
 
 [tool.poetry.dependencies]
-python = "<3.12,>=3.7"
+python = ">=3.8,<4"
 structlog = ">=21,<24"
 PyYAML = "^6.0.0"
 pydantic = ">=1.9.0,<2"
@@ -65,9 +64,10 @@ docs = [
     "sphinx-autobuild",
 ]
 
-[tool.poetry.dev-dependencies]
-mock = "^5.1.0"
+[tool.poetry.group.dev.dependencies]
+copier = ">=8.1.0,<9.0"
 pytest = "^7.4.2"
+types-pyyaml = "^6.0.12.4"
 # Cookiecutter tests
 mypy = "^1.4"
 black = "^23.3"
@@ -76,15 +76,35 @@ flake8 = "^3.9.0"
 flake8-annotations = "^2.9.1"
 flake8-docstrings = "^1.7.0"
 
-[tool.poetry.group.dev.dependencies]
-copier = ">=8.1.0,<9.0"
-types-pyyaml = "^6.0.12.4"
+[tool.ruff]
+ignore = [
+  "ANN101",
+]
+select = [
+  "E",
+  "F",
+  "B",
+  "I",
+  "ANN",
+  "D",
+  "UP",
+]
+target-version = "py38"
+
+[tool.ruff.flake8-annotations]
+allow-star-arg-any = true
+
+[tool.ruff.per-file-ignores]
+"docs/**" = [
+  "D",
+]
+"tests/**" = [
+  "ANN201",
+  "D",
+]
 
-[tool.isort]
-profile = "black"
-multi_line_output = 3 # Vertical Hanging Indent
-src_paths = "meltano/edk"
-known_first_party = ["meltano"]
+[tool.ruff.pydocstyle]
+convention = "google"
 
 [build-system]
 requires = [

tests/copier_template/test_generated.py

@@ -52,7 +52,7 @@ def test_copier_output(outdir: str):
         data={
             "admin_name": "John Doe",
             "cli_prefix": "testflow",
-            "extension_description": "A meltano utility extension for testflow that wraps the /bin/notreal command.",
+            "extension_description": "A meltano utility extension for testflow that wraps the /bin/notreal command.",  # noqa: E501
             "extension_id": "testflow-ext",
             "extension_name": "Testflow",
             "extension_name_lower": "testflow",

tests/test_process.py

@@ -1,14 +1,15 @@
 import asyncio
+import typing as t
+from unittest.mock import AsyncMock, Mock, patch
 
 import pytest
-from mock import AsyncMock, Mock, patch
 
 from meltano.edk.process import Invoker
 
 
 @pytest.fixture()
 def process_mock_factory():
-    def _factory(name):
+    def _factory(name: str) -> Mock:
         process_mock = Mock()
         process_mock.name = name
         process_mock.wait = AsyncMock(return_value=0)
@@ -20,7 +21,7 @@ def _factory(name):
 
 
 @pytest.fixture()
-def process_mock(process_mock_factory):
+def process_mock(process_mock_factory: t.Callable[[str], Mock]) -> Mock:
     process = process_mock_factory("echo")
     process.stdout.at_eof.side_effect = (False, False, False, True)
     process.stdout.readline = AsyncMock(
@@ -34,10 +35,10 @@ def process_mock(process_mock_factory):
     return process
 
 
-def test_exec(process_mock):
+def test_exec(process_mock: Mock):
     """Verify that the Invoker._exec method works as expected."""
 
-    async def _test_exec():
+    async def _test_exec() -> None:
         inv = Invoker("echo", cwd="/tmp", env={"FOO": "BAR"})
         with patch("asyncio.create_subprocess_exec") as mock:
             mock.return_value = process_mock