Merge pull request #95 from Salamek/py39

Add Python 3.9 and 3.10 support

Author: Salamek

.github/workflows/python-test.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python-version: ["3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
     - uses: actions/checkout@v4

cron_descriptor/ExpressionDescriptor.py

@@ -19,12 +19,14 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
+from __future__ import annotations
 
 import calendar
 import datetime
 import re
-from collections.abc import Callable
-from typing import TypedDict, Unpack
+from typing import Callable, TypedDict
+
+from typing_extensions import Unpack
 
 from .CasingTypeEnum import CasingTypeEnum
 from .DescriptionTypeEnum import DescriptionTypeEnum
@@ -349,7 +351,7 @@ def get_month_description(self) -> str:
         return self.get_segment_description(
             self._expression_parts[4],
             "",
-            lambda s: datetime.date(datetime.datetime.now(tz=datetime.UTC).date().year, int(s), 1).strftime("%B"),
+            lambda s: datetime.date(datetime.datetime.now(tz=datetime.timezone.utc).date().year, int(s), 1).strftime("%B"),
             lambda s: self.translate(", every {0} months").format(s),
             lambda _: self.translate(", month {0} through month {1}") or self.translate(", {0} through {1}"),
             lambda _: self.translate(", only in {0}"),

cron_descriptor/ExpressionValidator.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import re
 from typing import ClassVar
 

cron_descriptor/GetText.py

@@ -19,6 +19,7 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
+from __future__ import annotations
 
 import gettext
 import logging

cron_descriptor/Options.py

@@ -19,6 +19,7 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
+from __future__ import annotations
 
 import locale
 

examples/crontabReader.py

@@ -19,14 +19,14 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
+from __future__ import annotations
 
 # /// script
 # requires-python = ">=3.11"
 # dependencies = [
 #     "cron-descriptor",
 # ]
 # ///
-
 import re
 from pathlib import Path
 

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = 'setuptools.build_meta'
 name = "cron_descriptor"
 license = "MIT"
 dynamic = ["version"]
-requires-python = ">= 3.11"
+requires-python = ">= 3.9"
 description = "A Python library that converts cron expressions into human readable strings."
 
 classifiers = [
@@ -18,14 +18,16 @@ classifiers = [
     "Programming Language :: Python",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Topic :: Software Development",
 ]
 
 dependencies = [
-
+    "typing_extensions"
 ]
 
 [project.optional-dependencies]
@@ -60,7 +62,7 @@ exclude = ["tests*", "examples*"]
 
 [tool.ruff]
 line-length = 200
-target-version = "py312"
+target-version = "py39"
 
 [tool.ruff.lint]
 select = ["ALL"]
@@ -89,10 +91,12 @@ max-returns = 10
 
 [tool.mypy]
 files = ["cron_descriptor", "tests"]
+python_version = 3.9
 ignore_missing_imports = true
 strict = true
 
 
+
 [tool.pytest.ini_options]
 # Tell pytest where to look for tests
 testpaths = [

tools/resx2po.py

@@ -58,7 +58,7 @@ def resx2dict(self, resx: Path) -> dict[str, str]:
 
     def generate(self) -> None:
         po = polib.POFile()
-        now = datetime.datetime.now(datetime.UTC)
+        now = datetime.datetime.now(datetime.timezone.utc)
         po.metadata = {
             "Project-Id-Version": "1.0",
             "Report-Msgid-Bugs-To": "adam.schubert@sg1-game.net",