feat: drop Python <3.8 (#683)

* feat: drop Python <3.8

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* ci: re-add caching

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* ci: only cache on pypy

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

.github/workflows/ci.yml

@@ -28,26 +28,23 @@ jobs:
         python-version: "3.x"
     - uses: pre-commit/action@v3.0.1
     - name: pylint
-      run: |
-        echo "::add-matcher::$GITHUB_WORKSPACE/.github/matchers/pylint.json"
-        pipx run --python python nox -s pylint
+      run: pipx run --python python nox -s pylint -- --output-format=github
 
   tests:
     name: Tests on 🐍 ${{ matrix.python-version }} ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.6", "3.8", "3.11", "3.12"]
+        python-version: ["3.8", "3.10", "3.12"]
         os: [ubuntu-latest, windows-latest, macos-13]
         include:
         - python-version: 'pypy-3.8'
           os: ubuntu-latest
         - python-version: 'pypy-3.10'
           os: ubuntu-latest
-        - python-version: '3.6'
-          os: ubuntu-20.04
-        exclude:
-        - python-version: '3.6'
+        - python-version: '3.9'
+          os: ubuntu-latest
+        - python-version: '3.13'
           os: ubuntu-latest
     runs-on: ${{ matrix.os }}
 
@@ -60,19 +57,21 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
 
-    - uses: actions/cache@v4
-      if: runner.os == 'Linux' && startsWith(matrix.python-version, 'pypy')
+    - name: Setup uv (uncached)
+      uses: yezz123/setup-uv@v4
+      if: "!startsWith(matrix.python-version, 'pypy')"
+
+    - name: Setup uv (cached)
+      uses: hynek/setup-cached-uv@v1
+      if: "startsWith(matrix.python-version, 'pypy')"
       with:
-        path: ~/.cache/pip
-        key: ${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('setup.cfg') }}
-        restore-keys: |
-          ${{ runner.os }}-${{ matrix.python-version }}-pip-
+        cache-suffix: -${{ matrix.python-version }}
 
     - name: Install
       run: |
-        pip install wheel coveralls pytest-github-actions-annotate-failures
-        pip install -e .[dev]
+        uv pip install --system -e.[test] pytest-github-actions-annotate-failures --reinstall-package plumbum
 
     - name: Setup SSH tests
       if: runner.os != 'Windows'
@@ -92,15 +91,15 @@ jobs:
       run: pytest --cov --run-optional-tests=ssh,sudo
 
     - name: Upload coverage
-      run: coveralls --service=github
+      run: pipx run coveralls --service=github
       env:
         COVERALLS_PARALLEL: true
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         COVERALLS_FLAG_NAME: test-${{ matrix.os }}-${{ matrix.python-version }}
 
   coverage:
     needs: [tests]
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/setup-python@v5
       with:

examples/SimpleColorCLI.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from plumbum import cli, colors
 
 # from plumbum.colorlib import HTMLStyle, StyleFactory

examples/alignment.py

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 from plumbum import cli
 
 

examples/color.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 
 from plumbum import colors
 

examples/filecopy.py

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import logging
 
 from plumbum import cli, local

examples/fullcolor.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 
 from plumbum import colors
 

examples/geet.py

@@ -40,6 +40,8 @@
     committing...
 """
 
+from __future__ import annotations
+
 try:
     import colorama
 

examples/make_figures.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 
 from plumbum import FG, cli, local
 from plumbum.cmd import convert, pdflatex

examples/simple_cli.py

@@ -35,6 +35,8 @@
 Compiling: ('x.cpp', 'y.cpp', 'z.cpp')
 """
 
+from __future__ import annotations
+
 import logging
 
 from plumbum import cli

experiments/parallel.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from plumbum.commands.base import BaseCommand
 from plumbum.commands.processes import CommandNotFound, ProcessExecutionError, run_proc
 

experiments/test_parallel.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import unittest
 
 from parallel import Cluster

noxfile.py

@@ -2,9 +2,11 @@
 
 import nox
 
-ALL_PYTHONS = ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+ALL_PYTHONS = ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
-nox.options.sessions = ["lint", "tests"]
+nox.needs_version = ">=2024.3.2"
+nox.options.sessions = ["lint", "pylint", "tests"]
+nox.options.default_venv_backend = "uv|virtualenv"
 
 
 @nox.session(reuse_venv=True)
@@ -22,7 +24,7 @@ def pylint(session):
     Run pylint.
     """
 
-    session.install(".", "paramiko", "ipython", "pylint~=3.1.0")
+    session.install(".", "paramiko", "ipython", "pylint")
     session.run("pylint", "plumbum", *session.posargs)
 
 
@@ -31,7 +33,7 @@ def tests(session):
     """
     Run the unit and regular tests.
     """
-    session.install("-e", ".[dev]")
+    session.install("-e", ".[test]")
     session.run("pytest", *session.posargs, env={"PYTHONTRACEMALLOC": "5"})
 
 

plumbum/__init__.py

@@ -35,7 +35,7 @@
 See https://plumbum.readthedocs.io for full details
 """
 
-import sys
+from __future__ import annotations
 
 # Avoids a circular import error later
 import plumbum.path  # noqa: F401
@@ -83,35 +83,7 @@
     "cmd",
 )
 
-# ===================================================================================================
-# Module hack: ``from plumbum.cmd import ls``
-# Can be replaced by a real module with __getattr__ after Python 3.6 is dropped
-# ===================================================================================================
-
-
-if sys.version_info < (3, 7):  # noqa: UP036
-    from types import ModuleType
-    from typing import List
-
-    class LocalModule(ModuleType):
-        """The module-hack that allows us to use ``from plumbum.cmd import some_program``"""
-
-        __all__ = ()  # to make help() happy
-        __package__ = __name__
-
-        def __getattr__(self, name):
-            try:
-                return local[name]
-            except CommandNotFound:
-                raise AttributeError(name) from None
-
-        __path__: List[str] = []
-        __file__ = __file__
-
-    cmd = LocalModule(__name__ + ".cmd", LocalModule.__doc__)
-    sys.modules[cmd.__name__] = cmd
-else:
-    from . import cmd
+from . import cmd
 
 
 def __dir__():

plumbum/_testtools.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os
 import platform
 import sys

plumbum/cli/__init__.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from .application import Application
 from .config import Config, ConfigINI
 from .switches import (

plumbum/cli/application.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import functools
 import inspect
 import os

plumbum/cli/config.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 from abc import ABC, abstractmethod
 from configparser import ConfigParser, NoOptionError, NoSectionError

plumbum/cli/i18n.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import locale
 
 # High performance method for English (no translation needed)

plumbum/cli/image.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import sys
 
 from plumbum import colors

plumbum/cli/progress.py

@@ -3,6 +3,8 @@
 ------------
 """
 
+from __future__ import annotations
+
 import datetime
 import sys
 import warnings

plumbum/cli/switches.py

@@ -1,8 +1,10 @@
+from __future__ import annotations
+
 import collections.abc
 import contextlib
 import inspect
 from abc import ABC, abstractmethod
-from typing import Callable, Generator, List, Union
+from typing import Callable, Generator
 
 from plumbum import local
 from plumbum.cli.i18n import get_translation_for
@@ -464,10 +466,10 @@ class MyApp(Application):
 
     def __init__(
         self,
-        *values: Union[str, Callable[[str], str]],
+        *values: str | Callable[[str], str],
         case_sensitive: bool = False,
-        csv: Union[bool, str] = False,
-        all_markers: "collections.abc.Set[str]" = frozenset(),
+        csv: bool | str = False,
+        all_markers: collections.abc.Set[str] = frozenset(),
     ) -> None:
         self.case_sensitive = case_sensitive
         if isinstance(csv, bool):
@@ -501,7 +503,7 @@ def _call_iter(
             with contextlib.suppress(ValueError):
                 yield opt(value)
 
-    def __call__(self, value: str, check_csv: bool = True) -> Union[str, List[str]]:
+    def __call__(self, value: str, check_csv: bool = True) -> str | list[str]:
         items = list(self._call_iter(value, check_csv))
         if not items:
             msg = f"Invalid value: {value} (Expected one of {self.values})"

plumbum/cli/terminal.py

@@ -3,10 +3,11 @@
 --------------------------
 """
 
+from __future__ import annotations
+
 import contextlib
 import os
 import sys
-from typing import List, Optional
 
 from plumbum import local
 
@@ -24,7 +25,7 @@
 ]
 
 
-def __dir__() -> List[str]:
+def __dir__() -> list[str]:
     return __all__
 
 
@@ -35,7 +36,7 @@ def readline(message: str = "") -> str:
     return sys.stdin.readline()
 
 
-def ask(question: str, default: Optional[bool] = None) -> bool:
+def ask(question: str, default: bool | None = None) -> bool:
     """
     Presents the user with a yes/no question.