add new repo structure

.github/workflows/ci_base.yml

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+---
+name: CI libs/base
+
+on:
+  pull_request:
+    paths:
+      - 'dev-requirements.txt'
+      - 'pip-requirements.txt'
+      - '.github/workflows/python_reusable.yml'
+      - '.github/workflows/ci_base.yml'
+      - 'libs/base/**'
+  workflow_dispatch:  # Allows to trigger the workflow manually in GitHub UI
+
+jobs:
+  ci-libs-base:
+    uses:
+      ./.github/workflows/python_reusable.yml
+    with:
+      working-directory: libs/base
+    secrets: inherit

.github/workflows/ci_fancy.yml

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+---
+name: CI libs/fancy
+
+on:
+  pull_request:
+    paths:
+      - 'dev-requirements.txt'
+      - 'pip-requirements.txt'
+      - '.github/workflows/python_reusable.yml'
+      - '.github/workflows/ci_fancy.yml'
+      - 'libs/base/**'  # libs/fancy depends on libs/base
+      - 'libs/fancy/**'
+  workflow_dispatch:  # Allows to trigger the workflow manually in GitHub UI
+
+jobs:
+  ci-libs-fancy:
+    uses:
+      ./.github/workflows/python_reusable.yml
+    with:
+      working-directory: libs/fancy
+    secrets: inherit

.github/workflows/python_reusable.yml

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+---
+name: Reusable Python library CI
+
+on:
+  workflow_call:
+    inputs:
+      working-directory:
+        required: true
+        type: string
+        description: "From which folder this pipeline executes"
+      install-packages:
+        description: "Space seperated list of packages to install using apt-get."
+        default: ""
+        type: string
+      # To avoid being billed 360 minutes if a step does not terminate
+      # (we've seen the setup-python step below do so!)
+      ci-timeout:
+        description: "The timeout of the ci job. Default is 25min"
+        default: 25
+        type: number
+
+jobs:
+  local-ci-py-template:
+    runs-on: ubuntu-22.04
+    timeout-minutes: 30
+
+    defaults:
+      run:
+        working-directory: ${{ inputs.working-directory }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        timeout-minutes: 5
+        with:
+          python-version-file: ${{ github.workspace }}/.python-version
+          cache: "pip"
+          cache-dependency-path: |
+            dev-requirements.txt
+            pip-requirements.txt
+            ${{ inputs.working-directory }}/requirements.txt
+
+      - name: Install extra packages
+        if: ${{ inputs.install-packages != ''}}
+        run: |
+          sudo apt-get install -y ${{ inputs.install-packages }}
+
+      - name: Install Python dependencies
+        run: |
+          pip install -r "$(git rev-parse --show-toplevel)/pip-requirements.txt"
+          pip install -r "$(git rev-parse --show-toplevel)/dev-requirements.txt" -r requirements.txt
+
+      - name: Typecheck
+        run: |
+          pyright .
+
+      - name: Test
+        run: |
+          python3 -m pytest tests/  # Assume that tests are in folder "tests/"

.github/workflows/top_level.yml

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+---
+name: Top-level CI
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches: main  # Comment this line if you want to test the CI before opening a PR
+
+jobs:
+  ci-global:
+    runs-on: ubuntu-22.04
+    timeout-minutes: 10
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        timeout-minutes: 5
+        with:
+          python-version-file: .python-version
+          cache: 'pip'
+          cache-dependency-path: |
+            pip-requirements.txt
+            dev-requirements.txt
+
+      - name: Install Python dependencies
+        run: |
+          pip install -r pip-requirements.txt
+          pip install -r dev-requirements.txt
+
+      # in order to test the template as well, we create a temporary library in the CI
+      - name: Create library with template
+        run: |
+          cookiecutter --no-input templates/pylibrary --output-dir libs/
+          git add libs/library_name  # So that checks below apply to generated library
+
+      - name: Format Python imports
+        run: |
+          isort --check-only $(git ls-files "*.py")
+
+      - name: Format Python
+        run: |
+          black --check $(git ls-files "*.py")
+
+      - name: Lint Python
+        run: |
+          flake8 $(git ls-files "*.py")
+
+      # Are all public symbols documented? (see top-level pyproject.toml configuration)
+      - name: Lint Python doc
+        run: |
+          pylint $(git ls-files "*.py")

.gitignore

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+##################################################################
+# https://github.com/github/gitignore/blob/main/Python.gitignore #
+##################################################################
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/

.mergify.yml

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+queue_rules:
+  - name: default
+
+pull_request_rules:
+  - name: automatic merge
+    conditions:
+      - "#approved-reviews-by>=1"
+      - "label=merge-queue"
+      - "base=main"
+    actions:
+      queue:
+        name: default
+        method: rebase
+
+  - name: delete head branch after merge
+    conditions:
+      - merged
+      - closed
+    actions:
+      delete_head_branch: {}
+
+  - name: remove from merge-queue after merge
+    conditions:
+      - merged
+    actions:
+      label:
+        remove:
+          - "merge-queue"

.python-version

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+3.9.12