chore: setup pre-commit (#234)

* chore: add pre-commit config

* chore: fix pre-commit errors

* chore: add black pre-commit hook

* style: format python files with black

* chore: add isort pre-commit hook

* style: format python files using isort

* chore: add pyupgrade pre-commit hook

* refactor: upgrade code to python3.7

* Allow stacking PRs

Co-authored-by: Julian Tölle <julian.toelle97@gmail.com>

---------

Co-authored-by: Julian Tölle <julian.toelle97@gmail.com>

.pre-commit-config.yaml

@@ -0,0 +1,43 @@
+---
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-case-conflict
+      - id: check-symlinks
+      - id: destroyed-symlinks
+
+      - id: check-json
+      - id: check-yaml
+      - id: check-toml
+
+      - id: check-merge-conflict
+      - id: end-of-file-fixer
+      - id: mixed-line-ending
+      - id: trailing-whitespace
+
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v2.7.1
+    hooks:
+      - id: prettier
+        files: \.(md|ya?ml)$
+        exclude: ^changelogs/changelog.yaml$
+
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v3.7.0
+    hooks:
+      - id: pyupgrade
+        args: [--py37-plus]
+
+  - repo: https://github.com/pycqa/isort
+    rev: 5.12.0
+    hooks:
+      - id: isort
+
+  - repo: https://github.com/psf/black
+    rev: 23.3.0
+    hooks:
+      - id: black