refactor: migrate from tox/PyScaffold to uv for dependency management, consolidating all dependencies into pyproject.toml and a single uv.lock file.

.flake8

@@ -0,0 +1,10 @@
+[flake8]
+max_line_length = 88
+extend_ignore = E203, E501, W503
+# ^  Black-compatible
+# E203, E501 and W503 have edge cases handled by black
+exclude =
+    build
+    dist
+    .eggs
+    docs/conf.py

.github/agents/copilot.md

@@ -19,25 +19,30 @@ The main client class is `FlexMeasuresClient` in `src/flexmeasures_client/client
 ## Running Tests
 
 ```bash
-pip install -e ".[testing]"
-python3 -m pytest tests/test_client.py -q
+uv sync --group test
+uv run poe test
 ```
 
 ## Linting
 
-Always fix linting before pushing. Run individually if `pre-commit` is unavailable:
+Always fix linting before pushing. Run via pre-commit (preferred):
 
 ```bash
-pip install black isort flake8
-black src/ tests/
-isort src/ tests/
-flake8 src/ tests/
+uv run poe lint
 ```
 
-Or via pre-commit (preferred):
+Or run individually using `uv run`:
 
 ```bash
-pip install pre-commit && pre-commit run --all-files
+uv run black src/ tests/
+uv run isort src/ tests/
+uv run flake8 src/ tests/
+```
+
+To install pre-commit as a standalone tool:
+
+```bash
+uv tool install pre-commit && pre-commit run --all-files
 ```
 
 ## Coding Patterns

.github/agents/test-specialist.md

@@ -55,45 +55,71 @@ When writing tests for this project, follow these patterns:
 
 ## Code Quality and Linting
 
-Before finalizing tests, always apply the project's code quality checks:
+Before finalizing tests, always apply the project's code quality checks.
+
+### Poe Tasks
+The project uses [poethepoet](https://poethepoet.natn.io/) for common tasks. Prefer these over running tools directly:
+
+```bash
+uv run poe lint        # Run all pre-commit hooks on all files
+uv run poe type-check  # Run mypy on files with type hints
+uv run poe test        # Run the full test suite
+uv run poe test-no-s2  # Run tests excluding S2
+uv run poe test-s2     # Run S2 tests only
+```
 
 ### Running Pre-commit Hooks
-The project uses `.pre-commit-config.yaml` to enforce code quality standards. Always run pre-commit hooks before committing:
+The project uses `.pre-commit-config.yaml` to enforce code quality standards. `pre-commit` is included in the `dev` dependency group, so no separate installation is needed:
 
 ```bash
-# Install pre-commit (if not already installed)
-pip install pre-commit
+# If you have not installed pre-commit already:
+uv tool install pre-commit
 
 # Run all pre-commit hooks on all files
-pre-commit run --all-files
+uv run pre-commit run --all-files
+
+# Or via the poe task
+uv run poe lint
 ```
 
 ### Pre-commit Hooks in This Project
 The following hooks are configured:
 - **trailing-whitespace**: Removes trailing whitespace
-- **end-of-file-fixer**: Ensures files end with a newline
+- **check-added-large-files**: Prevents committing large files
 - **check-ast**: Validates Python syntax
 - **check-json**: Validates JSON files
+- **check-merge-conflict**: Detects merge conflict markers
+- **check-xml**: Validates XML files
 - **check-yaml**: Validates YAML files
 - **debug-statements**: Detects debug statements
+- **end-of-file-fixer**: Ensures files end with a newline
+- **requirements-txt-fixer**: Sorts requirements files
+- **mixed-line-ending**: Normalises line endings
 - **isort**: Sorts Python imports
 - **black**: Formats Python code (line length, style)
 - **flake8**: Checks Python code style and quality
-- **mypy**: Performs static type checking
+
+### Type Checking
+Mypy is run separately from pre-commit via the poe task:
+
+```bash
+uv run poe type-check
+```
+
+When mypy reports errors:
+- Add type hints where needed
+- Use `# type: ignore` comments sparingly for known issues
 
 ### Fixing Linting Issues
 When pre-commit hooks fail:
 1. Review the output to understand what failed
-2. Many hooks auto-fix issues (black, isort, end-of-file-fixer) - re-run to verify
+2. Many hooks auto-fix issues (black, isort, end-of-file-fixer) — re-run to verify
 3. For manual fixes (flake8 errors):
    - Address unused imports, undefined names, line too long, etc.
    - Run pre-commit again to verify fixes
-4. For mypy type errors:
-   - Add type hints where needed
-   - Use `# type: ignore` comments sparingly for known issues
 
 ### Best Practices
-- Run pre-commit hooks frequently during development
+- Run `uv run poe lint` frequently during development
 - Fix linting issues before requesting code review
 - Keep test code clean and well-formatted like production code
 - Ensure all hooks pass before pushing changes

.github/workflows/ci.yml

@@ -22,37 +22,29 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  prepare:
+  check:
     runs-on: ubuntu-latest
-    outputs:
-      wheel-distribution: ${{ steps.wheel-distribution.outputs.path }}
+    name: Check (on Python 3.12)
     steps:
-      - uses: actions/checkout@v3
-        with: { fetch-depth: 0 } # deep clone for setuptools-scm
-      - uses: actions/setup-python@v4
-        id: setup-python
-        with: { python-version: "3.11" }
-      - name: Run static analysis and format checkers
-        run: pipx run pre-commit run --all-files --show-diff-on-failure
-      - name: Build package distribution files
-        run: >-
-          pipx run --python '${{ steps.setup-python.outputs.python-path }}'
-          tox -e clean,build
-      - name: Record the path of wheel distribution
-        id: wheel-distribution
-        run: echo "path=$(ls dist/*.whl)" >> $GITHUB_OUTPUT
-      - name: Store the distribution files for use in other stages
-        # `tests` and `publish` will use the same pre-built distributions,
-        # so we make sure to release the exact same package that was tested
-        uses: actions/upload-artifact@v4
+      - uses: actions/checkout@v6
+      - name: "Set up Python"
+        uses: actions/setup-python@v6
         with:
-          name: python-distribution-files
-          path: dist/
-          retention-days: 1
+          python-version-file: ".python-version"
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+          cache-dependency-glob: '.pre-commit-config.yaml'
+          version: "0.10.9"
+      - name: Install dev dependencies
+        run: uv sync --only-group dev --frozen
+      - uses: tox-dev/action-pre-commit-uv@v1
 
   test:
-    needs: prepare
+    needs: check
     strategy:
+      fail-fast: false
       matrix:
         python:
           - "3.10"
@@ -61,33 +53,24 @@ jobs:
         platform:
           - ubuntu-latest
           - macos-latest
-#          - windows-latest
     runs-on: ${{ matrix.platform }}
+    name: "Test (${{ matrix.platform }} on Python ${{ matrix.python }})"
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
-        id: setup-python
+      - uses: actions/checkout@v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
         with:
+          enable-cache: true
+          version: "0.10.9"
           python-version: ${{ matrix.python }}
-      - name: Retrieve pre-built distribution files
-        uses: actions/download-artifact@v4
-        with:
-          name: python-distribution-files
-          path: dist/
+      - name: Install dependencies
+        run: uv sync --frozen --group test
       - name: Run tests
-        run: >-
-          pipx run --python '${{ steps.setup-python.outputs.python-path }}'
-          tox --installpkg '${{ needs.prepare.outputs.wheel-distribution }}'
-          -- -rFEx --durations 10 --color yes  # pytest args
-      - name: Run tests (s2)
-        run: >-
-          pipx run --python '${{ steps.setup-python.outputs.python-path }}'
-          tox -e s2 --installpkg '${{ needs.prepare.outputs.wheel-distribution }}'
-          -- -rFEx --durations 10 --color yes  # pytest args
+        run: uv run pytest tests --ignore=tests/s2 -rFEx --durations 10 --color yes --cov
       - name: Show coverage report
-        run: pipx run coverage report
+        run: uv run coverage report
       - name: Generate coverage report
-        run: pipx run coverage lcov -o coverage.lcov
+        run: uv run coverage lcov -o coverage.lcov
       - name: Upload partial coverage report
         uses: coverallsapp/github-action@v2
         with:
@@ -97,8 +80,25 @@ jobs:
           flag-name: ${{ matrix.platform }} - py${{ matrix.python }}
           parallel: true
 
+  test-s2:
+    needs: check
+    runs-on: ubuntu-latest
+    name: "Test S2 (on Python 3.12)"
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+          version: "0.10.9"
+          python-version-file: ".python-version"
+      - name: Install dependencies
+        run: uv sync --frozen --extra s2 --group test
+      - name: Run S2 tests
+        run: uv run pytest tests/s2 -rFEx --durations 10 --color yes
+
   finalize:
-    needs: test
+    needs: [ test, test-s2]
     runs-on: ubuntu-latest
     steps:
       - name: Coveralls Finished
@@ -108,55 +108,3 @@ jobs:
           parallel-finished: true
           github-token: ${{ secrets.GITHUB_TOKEN }}
       - run: echo "Finished checks"
-
-  publish:
-    needs: finalize
-    if: ${{ github.event_name == 'push' && contains(github.ref, 'refs/tags/v') }}
-    runs-on: ubuntu-latest
-    environment:
-      name: release
-      url: https://pypi.org/project/flexmeasures-client/
-    permissions:
-      id-token: write
-    steps:
-      - uses: actions/checkout@v3
-        with: {fetch-depth: 0}  # deep clone for setuptools-scm
-      - uses: actions/setup-python@v4
-        with: { python-version: "3.11" }
-      - name: Retrieve pre-built distribution files
-        uses: actions/download-artifact@v4
-        with:
-          name: python-distribution-files
-          path: dist/
-      - name: Publish Package
-        uses: pypa/gh-action-pypi-publish@release/v1
-        # run: pipx run tox -e publish
-      - name: Publish release on GitHub
-        uses: softprops/action-gh-release@v2
-        with:
-          generate_release_notes: true
-          tag_name: ${{ inputs.custom_version || github.ref_name }}
-        env:
-          GITHUB_TOKEN: ${{ secrets.GH_RELEASE_PAT }}
-
-  # test-publish:
-  #   needs: finalize
-  #   if: ${{ github.event_name == 'push' && contains(github.ref, 'refs/tags/test') }}
-  #   runs-on: ubuntu-latest
-  #   environment:
-  #     name: testpypi
-  #     url: https://test.pypi.org/project/flexmeasures-client/
-  #   permissions:
-  #     id-token: write
-  #   steps:
-  #     - uses: actions/checkout@v3
-  #     - uses: actions/setup-python@v4
-  #       with: {python-version: "3.11"}
-  #     - name: Retrieve pre-built distribution files
-  #       uses: actions/download-artifact@v3
-  #       with: {name: python-distribution-files, path: dist/}
-  #     - name: Publish Package
-  #       uses: pypa/gh-action-pypi-publish@release/v1
-  #       with:
-  #         repository-url: https://test.pypi.org/legacy/
-  #       # run: pipx run tox -e publish

.github/workflows/release.yml

@@ -0,0 +1,69 @@
+name: release
+
+on:
+  push:
+    tags:
+      - 'v[0-9]+\.[0-9]+\.[0-9]+'
+      - 'v[0-9]+\.[0-9]+\.[0-9]+\.dev[0-9]+'
+
+permissions:
+  contents: write
+
+jobs:
+  release-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          version: "0.10.9"
+          python-version-file: ".python-version"
+          enable-cache: true
+
+      - name: Build release distributions
+        run: uv build
+
+      - name: Upload distributions
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-dists
+          path: dist/
+
+  pypi-publish:
+    runs-on: ubuntu-latest
+    needs: release-build
+    permissions:
+      # IMPORTANT: this permission is mandatory for trusted publishing
+      id-token: write
+
+    # Dedicated environments with protections for publishing are strongly recommended.
+    # For more information, see: https://docs.github.com/en/actions/deployment/targeting-different-environments/using-environments-for-deployment#deployment-protection-rules
+    environment:
+      name: pypi
+      url: https://pypi.org/project/flexmeasures-client/
+
+    steps:
+      - name: Retrieve release distributions
+        uses: actions/download-artifact@v4
+        with:
+          name: release-dists
+          path: dist/
+
+      - name: Publish release distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          packages-dir: dist/
+
+  github-release:
+    runs-on: ubuntu-latest
+    needs: pypi-publish
+    steps:
+      - name: Publish release on GitHub
+        uses: softprops/action-gh-release@v2
+        with:
+          generate_release_notes: true
+          tag_name: ${{ inputs.custom_version || github.ref_name }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_RELEASE_PAT }}

.gitignore

@@ -51,7 +51,6 @@ MANIFEST
 # Per-project virtualenvs
 .venv*/
 .conda*/
-.python-version
 
 venv/*
 log