Drop support for Python 3.9

Python 3.9 has reached end-of-life. The minimum supported version is
now Python 3.10.

Co-authored-by: Amp <amp@ampcode.com>

Author: Schnouki

.github/workflows/test.yml

@@ -6,7 +6,7 @@ jobs:
   test:
     strategy:
       matrix:
-        env: ["py39", "py310", "py311", "py312", "py313"]
+        env: ["py310", "py311", "py312", "py313"]
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `TodoistAPIAsync` now performs true async HTTP I/O with `httpx.AsyncClient`.
 
+### Removed
+
+- Support for Python 3.9 (EOL).
+
 ### Changed
 
 - **Breaking**: `TodoistAPI` now accepts an optional `client: httpx.Client` instead of `session: requests.Session`.

README.md

@@ -18,7 +18,7 @@ dependencies = [
 
 ### Supported Python Versions
 
-Python version 3.9 and above.
+Python version 3.10 and above.
 
 ## Usage
 

pyproject.toml

@@ -3,7 +3,7 @@ name = "todoist_api_python"
 version = "3.2.1"
 description = "Official Python SDK for the Todoist API."
 authors = [{ name = "Doist Developers", email = "dev@doist.com" }]
-requires-python = ">=3.9,<4"
+requires-python = ">=3.10,<4"
 readme = "README.md"
 license = "MIT"
 keywords = ["todoist", "rest", "sync", "api", "python"]
@@ -82,7 +82,7 @@ warn_required_dynamic_aliases = true
 warn_untyped_fields = true
 
 [tool.ruff]
-target-version = "py39" # used by some linters like UP, FA, PERF
+target-version = "py310" # used by some linters like UP, FA, PERF
 
 [tool.ruff.lint]
 select = [

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py39,py310,py311,py312,py313
+envlist = py310,py311,py312,py313
 
 [testenv]
 runner = uv-venv-lock-runner