From 94ec59571abb7bdb93fe47655a15eebf35c220f1 Mon Sep 17 00:00:00 2001
From: Min RK <benjaminrk@gmail.com>
Date: Mon, 26 May 2025 12:52:13 +0200
Subject: [PATCH] Revert "breaking: require Python 3.9 (#426)"

This reverts commit 25dc203a9f46eb16b64b1e8257d570aa9534f5a9.
---
 .github/workflows/test.yml     | 4 +++-
 jupyter_core/paths.py          | 3 +--
 jupyter_core/utils/__init__.py | 3 +--
 pyproject.toml                 | 4 ++--
 tests/test_migrate.py          | 5 ++---
 5 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index fab0033..efd3c0b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,8 +28,10 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ["3.9", "3.12", "3.13"]
+        python-version: ["3.8", "3.12", "3.13"]
         include:
+          - os: windows-latest
+            python-version: "3.9"
           - os: ubuntu-latest
             python-version: "3.11"
           - os: ubuntu-latest
diff --git a/jupyter_core/paths.py b/jupyter_core/paths.py
index 3512d0e..a726357 100644
--- a/jupyter_core/paths.py
+++ b/jupyter_core/paths.py
@@ -15,10 +15,9 @@
 import sys
 import tempfile
 import warnings
-from collections.abc import Iterator
 from contextlib import contextmanager
 from pathlib import Path
-from typing import Any, Literal, Optional, overload
+from typing import Any, Iterator, Literal, Optional, overload
 
 import platformdirs
 
diff --git a/jupyter_core/utils/__init__.py b/jupyter_core/utils/__init__.py
index 4037b06..665eac2 100644
--- a/jupyter_core/utils/__init__.py
+++ b/jupyter_core/utils/__init__.py
@@ -9,11 +9,10 @@
 import sys
 import threading
 import warnings
-from collections.abc import Awaitable
 from contextvars import ContextVar
 from pathlib import Path
 from types import FrameType
-from typing import Any, Callable, TypeVar, cast
+from typing import Any, Awaitable, Callable, TypeVar, cast
 
 
 def ensure_dir_exists(path: str | Path, mode: int = 0o777) -> None:
diff --git a/pyproject.toml b/pyproject.toml
index 689e4c8..a7f60c8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3"
 ]
-requires-python = ">=3.9"
+requires-python = ">=3.8"
 dependencies = [
   "platformdirs>=2.5",
   "traitlets>=5.3",
@@ -102,7 +102,7 @@ build = [
 
 [tool.mypy]
 files = "jupyter_core"
-python_version = "3.9"
+python_version = "3.8"
 strict = true
 enable_error_code = ["ignore-without-code", "redundant-expr", "truthy-bool"]
 warn_unreachable = true
diff --git a/tests/test_migrate.py b/tests/test_migrate.py
index 0fe4d75..2beb2c8 100644
--- a/tests/test_migrate.py
+++ b/tests/test_migrate.py
@@ -132,9 +132,8 @@ def notice_m_dir(src, dst):
         called["migrate_dir"] = True
         return migrate_dir(src, dst)
 
-    with (
-        patch.object(migrate_mod, "migrate_file", notice_m_file),
-        patch.object(migrate_mod, "migrate_dir", notice_m_dir),
+    with patch.object(migrate_mod, "migrate_file", notice_m_file), patch.object(
+        migrate_mod, "migrate_dir", notice_m_dir
     ):
         assert migrate_one(src, dst)
         assert called == {"migrate_file": True}