feat: drop support for Python <3.9

.github/workflows/main.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [Ubuntu, macOS, Windows]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         include:
           - os: Ubuntu
             image: ubuntu-latest

pyproject.toml

@@ -17,7 +17,7 @@ include = [
 ]
 
 [tool.poetry.dependencies]
-python = "^3.8"
+python = "^3.9"
 poetry = ">=1.8.0,<3.0.0"
 poetry-core = ">=1.7.0,<3.0.0"
 
@@ -42,7 +42,7 @@ export = "poetry_plugin_export.plugins:ExportApplicationPlugin"
 
 [tool.ruff]
 fix = true
-target-version = "py38"
+target-version = "py39"
 line-length = 88
 extend-exclude = [
     "docs/*",
@@ -72,6 +72,12 @@ extend-select = [
 [tool.ruff.lint.flake8-tidy-imports]
 ban-relative-imports = "all"
 
+[tool.ruff.lint.flake8-type-checking]
+exempt-modules = [
+    "collections.abc",
+    "typing",
+]
+
 [tool.ruff.lint.isort]
 force-single-line = true
 lines-between-types = 1

src/poetry_plugin_export/exporter.py

@@ -2,9 +2,9 @@
 
 import urllib.parse
 
+from collections.abc import Iterable
 from functools import partialmethod
 from typing import TYPE_CHECKING
-from typing import Iterable
 
 from cleo.io.io import IO
 from poetry.core.packages.dependency_group import MAIN_GROUP

tests/helpers.py

@@ -2,10 +2,10 @@
 
 import os
 
+from collections.abc import Iterator
 from contextlib import contextmanager
 from typing import TYPE_CHECKING
 from typing import Any
-from typing import Iterator
 
 from poetry.console.application import Application
 from poetry.factory import Factory