Added isort config; linter now checks tests

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