STYLE: enforce PEP8 and linting

.github/workflows/lint_and_style.yaml

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+name: lint_and_style
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - master
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request' || (github.ref == 'refs/heads/main' && github.event_name == 'push') || (github.ref == 'refs/heads/master' && github.event_name == 'push')
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v3
+      with:
+        python-version: '3.9'
+    - run: pip install pylint & pip install -r docker/requirements.txt
+    - uses: pre-commit/[email protected]
+  pylint:
+    runs-on: ubuntu-latest
+    needs: pre-commit
+    continue-on-error: true
+    if: false #github.event_name == 'pull_request' || (github.ref == 'refs/heads/main' && github.event_name == 'push') || (github.ref == 'refs/heads/master' && github.event_name == 'push')
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v3
+      with:
+        python-version: '3.9'
+    - run: pip install pylint & pip install -r docker/requirements.txt
+    - uses: pre-commit/[email protected]
+      with:
+        extra_args: --hook-stage manual pylint-all --all-files

.pre-commit-config.yaml

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+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+      - id: check-docstring-first
+      - id: check-toml
+      - id: check-yaml
+      - id: mixed-line-ending
+        args: [--fix=lf]
+      - id: end-of-file-fixer
+  - repo: https://gitlab.com/bmares/check-json5
+    rev: v1.0.0
+    hooks:
+      - id: check-json5
+        exclude: data/.*
+  - repo: https://github.com/hhatto/autopep8
+    rev: v2.1.0
+    hooks:
+      - id: autopep8
+        args: [--in-place, --aggressive, --exit-code]
+        types: [python]
+  - repo: local
+    hooks:
+      - id: pylint
+        name: pylint
+        entry: pylint
+        language: system
+        types: [python]
+        args:
+          [
+            "--max-line-length=120",
+            "--errors-only",
+          ]
+      - id: pylint
+        alias: pylint-all
+        name: pylint-all
+        entry: pylint
+        language: system
+        types: [python]
+        args:
+          [
+            "--max-line-length=120",
+          ]
+        stages: [manual]
+  - repo: https://github.com/pycqa/flake8
+    rev: 7.0.0
+    hooks:
+      - id: flake8
+        args: [--config=setup.cfg]
+        additional_dependencies:
+          - flake8-bugbear==22.10.27
+          - flake8-comprehensions==3.10.1
+          - torchfix==0.0.2
+  - repo: https://github.com/facebook/usort
+    rev: v1.0.7
+    hooks:
+      - id: usort
+        name: Sort imports with µsort
+        description: Safe, minimal import sorting
+        language: python
+        types_or:
+          - python
+          - pyi
+        entry: usort format
+        require_serial: true

setup.cfg

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+[metadata]
+description-file = README.md
+license_file = LICENSE
+
+[build_sphinx]
+source-dir = docs/source
+build-dir  = docs/build
+all_files  = 1
+
+[pycodestyle]
+max-line-length = 120
+statistics = True
+show-pep8 = True
+show-source = True
+ignore = W391, W605, W503
+
+[pep8]
+max-line-length=120
+show-pep8 = true
+statistics = true
+ignore = W391, W503
+
+[flake8]
+max-line-length = 120
+ignore = E203, E402, W503, W391
+exclude = venv
+extend-select = B901, C401, C408, C409