Added pre-commit checker

.pre-commit-config.yml

@@ -0,0 +1,19 @@
+repos:
+  - repo: https://github.com/ambv/black
+    rev: 24.3.0
+    hooks:
+    - id: black
+  - repo: https://github.com/pycqa/isort
+    rev: 5.11.5
+    hooks:
+    - id: isort
+      args: ["--profile", "black"]
+  - repo: https://github.com/pycqa/flake8
+    rev: 5.0.4
+    hooks:
+    - id: flake8
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v0.991
+    hooks:
+      - id: mypy
+        args: ["--ignore-missing-imports"]

setup.cfg

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+[metadata]
+long_description = file: README.md
+long_description_content_type = text/markdown
+
+[options]
+test_suite = tests
+
+[aliases]
+test=pytest
+
+[flake8]
+statistics = true
+exclude = .git
+ignore = E203, E501, W503, B950
+select = B,C,E,F,W,T4,B9
+per-file-ignores =
+    __init__.py: F401, F403
+
+[mypy]
+# Import discovery
+namespace_packages = False
+ignore_missing_imports = True
+
+# Untyped definitions and calls
+disallow_untyped_calls = True
+disallow_untyped_defs = True
+disallow_incomplete_defs = True
+disallow_untyped_decorators = True
+
+# Configuring warnings
+warn_redundant_casts = True
+warn_unused_ignores = True
+warn_no_return = True
+warn_return_any = True
+warn_unreachable = True
+
+# Miscellaneous strictness flags
+strict_equality = True
+
+[mypy-tests.*]
+ignore_errors = True