Added isort config; linter now checks tests

Makefile

@@ -4,6 +4,7 @@ PYTHON  := python3
 VENV    := .venv
 # Minimum % coverage for tests to succeed
 MIN_COV := 50
+SRC     := setup.py app tests
 
 
 # =====GENERAL=====
@@ -33,13 +34,14 @@ venv: $(VENV)/bin/activate
 ## Formatting & linting
 ### Format the codebase using black
 format: venv
-	@ '$(VENV)'/bin/black setup.py app
+	@ '$(VENV)'/bin/black $(SRC)
+	@ '$(VENV)'/bin/isort $(SRC)
 .PHONY: format
 
 ### Lint using black & flake8
 lint: venv
-	@ '$(VENV)'/bin/flake8 setup.py app
-	@ '$(VENV)'/bin/black --check setup.py app
+	@ '$(VENV)'/bin/flake8 $(SRC)
+	@ '$(VENV)'/bin/black --check $(SRC)
 .PHONY: lint
 
 

app/__init__.py

@@ -0,0 +1 @@
+"""Main module for the app."""

app/exceptions.py

@@ -1,5 +1,5 @@
 """Common exceptions raised by the program."""
-from typing import Union, List
+from typing import List, Union
 
 
 class InvalidKeyError(Exception):

app/skeleton.py

@@ -1,5 +1,6 @@
 """Handles merging with the skeleton config."""
 from typing import Dict
+
 from .exceptions import InvalidKeyError, MissingKeyError
 
 

pyproject.toml

@@ -4,3 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [tool.black]
 line-length = 79
+
+[tool.isort]
+profile = "black"
+multi_line_output = 3

setup.cfg

@@ -22,6 +22,7 @@ lint =
     flake8-docstrings==1.6.0
     flake8-print==4.0.0
     flake8-quotes==3.2.0
+    isort==5.8.0
 
 # Required for the developer
 develop =

setup.py

@@ -1,4 +1,4 @@
+"""Setup script for the package."""
 import setuptools
 
-
 setuptools.setup()

tests/__init__.py

@@ -0,0 +1 @@
+"""Main testing module."""

tests/test_skeleton.py

@@ -1,15 +1,13 @@
 """Tests wether the skeleton merge works."""
-from app.skeleton import merge_with_skeleton
-from app.exceptions import InvalidKeyError, MissingKeyError
 import pytest
 
+from app.exceptions import InvalidKeyError, MissingKeyError
+from app.skeleton import merge_with_skeleton
+
 
 def test_single_invalid_key():
     """Tests wether an InvalidKeyError is correctly thrown for a single key."""
-    data = {
-        "test": 1,
-        "test2": "test"
-    }
+    data = {"test": 1, "test2": "test"}
     skel = {
         "test": None,
     }