added isort, black, mypy

.github/workflows/test-rules-engine.yml

@@ -25,6 +25,13 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r requirements-dev.txt
           pip install -e .
-      - name: Test with pytest
+      - name: Check style
+        run: |
+          isort --check .
+          black --check .
+      - name: Check typing
+        run: |
+          mypy .
+      - name: Run tests
         run: |
           pytest

rules-engine/pyproject.toml

@@ -10,5 +10,11 @@ dependencies = []
 
 [project.optional-dependencies]
 dev = [
+    "black",
+    "isort",
+    "mypy",
     "pytest"
 ]
+
+[tool.isort]
+profile = "black"

rules-engine/requirements-dev.txt

@@ -2,19 +2,44 @@
 # This file is autogenerated by pip-compile with Python 3.8
 # by the following command:
 #
-#    pip-compile --extra=test --output-file=requirements-test.txt pyproject.toml
+#    pip-compile --extra=dev --output-file=requirements-dev.txt pyproject.toml
 #
+black==23.3.0
+    # via rules-engine (pyproject.toml)
+click==8.1.3
+    # via black
 colorama==0.4.6
     # via pytest
 exceptiongroup==1.1.1
     # via pytest
 iniconfig==2.0.0
     # via pytest
+isort==5.12.0
+    # via rules-engine (pyproject.toml)
+mypy==1.4.0
+    # via rules-engine (pyproject.toml)
+mypy-extensions==1.0.0
+    # via
+    #   black
+    #   mypy
 packaging==23.1
-    # via pytest
+    # via
+    #   black
+    #   pytest
+pathspec==0.11.1
+    # via black
+platformdirs==3.7.0
+    # via black
 pluggy==1.0.0
     # via pytest
 pytest==7.3.2
     # via rules-engine (pyproject.toml)
 tomli==2.0.1
-    # via pytest
+    # via
+    #   black
+    #   mypy
+    #   pytest
+typing-extensions==4.6.3
+    # via
+    #   black
+    #   mypy

rules-engine/src/rules_engine/example.py

@@ -1,2 +1,2 @@
 def add_two_numbers(first: int, second: int) -> int:
-    return first + second
+    return first + second

rules-engine/tests/rules_engine/test_example.py

@@ -1,5 +1,6 @@
 from rules_engine import example
 
+
 def test_add_two_numbers():
     result = example.add_two_numbers(1, 2)
-    assert result == 3
+    assert result == 3