chore: Dropped support for Python 3.9 (#393)

Author: edgarrmondragon

.github/workflows/meltano-run.yml .github/workflows/ci.yml.github/workflows/meltano-run.yml renamed to .github/workflows/ci.yml

@@ -1,4 +1,4 @@
-name: Meltano Run
+name: CI
 
 on:
   pull_request: {}
@@ -10,8 +10,34 @@ on:
   workflow_dispatch:
 
 jobs:
+  lint:
+    name: Lint and Type Check
+    runs-on: ubuntu-latest
+    env:
+      UV_PYTHON: ${{ github.workspace }}/.github/workflows/constraints.txt
+    steps:
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+
+    - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      id: setup-python
+
+    - uses: astral-sh/setup-uv@4959332f0f014c5280e7eac8b70c90cb574c9f9b # v6.6.0
+
+    - name: Install Poetry
+      run: |
+        uv tool install --python '${{ steps.setup-python.outputs.python-path }}' poetry
+
+    - name: Install dependencies
+      run: |
+        poetry sync --all-extras --all-groups
+
+    - name: Run tests
+      run: |
+        poetry run mypy meltano_map_transform
+        poetry run ty check meltano_map_transform
+
   meltano-run:
-    name: ${{ matrix.mapping }}
+    name: Meltano Run - ${{ matrix.mapping }}
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false

.github/workflows/constraints.txt

@@ -1 +1,2 @@
 meltano==3.9.1
+poetry==2.1.4

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ ci:
 
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v5.0.0
+  rev: v6.0.0
   hooks:
   - id: check-json
     exclude: .devcontainer/.*.json
@@ -23,26 +23,19 @@ repos:
   - id: trailing-whitespace
 
 - repo: https://github.com/python-jsonschema/check-jsonschema
-  rev: 0.33.2
+  rev: 0.33.3
   hooks:
   - id: check-dependabot
   - id: check-meltano
   - id: check-github-workflows
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.12.7
+  rev: v0.12.10
   hooks:
     - id: ruff
       args: [--fix, --exit-non-zero-on-fix, --show-fixes]
     - id: ruff-format
 
-- repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v1.17.1
-  hooks:
-  - id: mypy
-    additional_dependencies:
-    - types-requests
-
 - repo: https://github.com/tox-dev/pyproject-fmt
   rev: "v2.6.0"
   hooks:

CHANGELOG.md

@@ -6,6 +6,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
 and is generated by [git-cliff](https://github.com/orhun/git-cliff).
 
+## v0.11.0 (2025-08-26)
+
+### Removed
+
+- Dropped support for Python 3.9
+
 ## v0.5.0 (2023-09-14)
 
 ### Added

README.md

@@ -8,6 +8,10 @@ A map transformer to duplicate, filter, hash, mask and do many more small transf
 
 This mapper plugin is fully compliant with the Singer Spec and can be placed in between any Singer tap and target.
 
+## Requirements
+
+- Python 3.10+
+
 ## meltano-map-transformer in action
 
 For a collection of examples, take a look at [examples/README.md](examples/README.md).

meltano_map_transform/mapper.py

@@ -5,7 +5,7 @@
 from typing import TYPE_CHECKING
 
 import singer_sdk.typing as th
-from singer_sdk import _singerlib as singer
+from singer_sdk import singerlib as singer
 from singer_sdk.helpers._util import utc_now
 from singer_sdk.mapper import PluginMapper
 from singer_sdk.mapper_base import InlineMapper

poetry.lock

@@ -1,8 +1,8 @@
 [build-system]
 build-backend = "poetry_dynamic_versioning.backend"
 requires = [
-  "poetry-core==2.0.1",
-  "poetry-dynamic-versioning==1.7.1",
+  "poetry-core==2.1.3",
+  "poetry-dynamic-versioning==1.9.1",
 ]
 
 [tool.poetry]
@@ -24,16 +24,18 @@ repository = "https://github.com/MeltanoLabs/meltano-map-transform"
 documentation = "https://github.com/MeltanoLabs/meltano-map-transform#readme"
 
 [tool.poetry.dependencies]
-python = ">=3.9"
+python = ">=3.10,<4"
 
 [tool.poetry.dependencies.singer-sdk]
-version = "~=0.47.0"
+version = "~=0.48.0"
 extras = [
   "faker",
 ]
 
 [tool.poetry.group.dev.dependencies]
-pytest = ">=7.4.4"
+mypy = ">=1.17.1"
+pytest = ">=8"
+ty = ">=0.0.1a19"
 
 [tool.poetry.scripts]
 # CLI declaration
@@ -55,7 +57,7 @@ style = "pep440"
 vcs = "git"
 
 [tool.ruff]
-target-version = "py39"
+target-version = "py310"
 
 src = [
   "meltano_map_transform",
@@ -84,12 +86,4 @@ lint.pydocstyle.convention = "google"
 addopts = "-vvv"
 
 [tool.mypy]
-python_version = "3.12"
 warn_unused_configs = true
-
-[[tool.mypy.overrides]]
-ignore_missing_imports = true
-module = [
-  "backoff.*",
-  "singer.*",  # https://github.com/transferwise/pipelinewise-singer-python/issues/25
-]