4 files changed, 34 insertions, 21 deletions

diff --git a/aoc/__init__.py b/aoc/__init__.py
index b13489c..5fce415 100644
--- a/aoc/__init__.py
+++ b/aoc/__init__.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 import os
 from abc import ABC
 from typing import Generator, Any, Iterator
@@ -5,23 +6,24 @@ from typing import Generator, Any, Iterator
 
 class BaseAssignment(ABC):
     example_result = NotImplemented
+
     def __init__(self, path):
         self.path = path
 
     def __str__(self):
-        return f'{self.__module__}.{self.__class__.__name__}'
+        return f"{self.__module__}.{self.__class__.__name__}"
 
     def parse_item(self, item: str) -> Any:
         return item
 
-    def read_input(self, example = False) -> Generator:
-        file = f'{self.path}/input.txt'
+    def read_input(self, example=False) -> Generator:
+        file = f"{self.path}/input.txt"
         if example or not os.path.isfile(file):
-            file = f'{self.path}/example.txt'
+            file = f"{self.path}/example.txt"
 
-        with open(file, 'r') as input_file:
+        with open(file, "r") as input_file:
             for line in input_file.readlines():
                 yield self.parse_item(line.strip())
 
     def run(self, input: Iterator) -> Any:
-        raise NotImplementedError('Please implement run')
\ No newline at end of file
+        raise NotImplementedError("Please implement run")
diff --git a/aoc/__main__.py b/aoc/__main__.py
index 25a7026..337bdfe 100644
--- a/aoc/__main__.py
+++ b/aoc/__main__.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 import argparse
 import importlib
 import os
@@ -7,32 +8,37 @@ from typing import List
 
 def day(assignment_part: str) -> str:
     return {
-        '1': 'One',
-        '2': 'Two',
+        "1": "One",
+        "2": "Two",
     }[assignment_part]
 
+
 def kwargs(kwarg: str) -> List:
-    return kwarg.split('=')
+    return kwarg.split("=")
+
 
-parser = argparse.ArgumentParser(description='Advent of Code')
+parser = argparse.ArgumentParser(description="Advent of Code")
 
-parser.add_argument('day', type=str, help='Assignment day')
+parser.add_argument("day", type=str, help="Assignment day")
 parser.add_argument(
-    '-p', '--part', type=day, nargs='?', default='1',
-    help='Assingment part. Defaults to one.'
+    "-p",
+    "--part",
+    type=day,
+    nargs="?",
+    default="1",
+    help="Assingment part. Defaults to one.",
 )
-parser.add_argument('--example', default=False, action='store_true')
-parser.add_argument('kwargs', type=kwargs, nargs='*')
+parser.add_argument("--example", default=False, action="store_true")
+parser.add_argument("kwargs", type=kwargs, nargs="*")
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     args = parser.parse_args()
     assignment_day = importlib.import_module(args.day)
 
-    Assignment = getattr(assignment_day, f'Assignment{args.part}')
+    Assignment = getattr(assignment_day, f"Assignment{args.part}")
     assignment = Assignment(
-        path=os.path.dirname(assignment_day.__file__),
-        **dict(args.kwargs)
+        path=os.path.dirname(assignment_day.__file__), **dict(args.kwargs)
     )
 
     start = perf_counter()
diff --git a/aoc/test_init.py b/aoc/test_init.py
index a9155cc..f804c41 100644
--- a/aoc/test_init.py
+++ b/aoc/test_init.py
@@ -1,2 +1,6 @@
+# -*- coding: utf-8 -*-
 def test_assignment_examples(assignment):
-    assert assignment.run(input=assignment.read_input(example=True)) == assignment.example_result
+    assert (
+        assignment.run(input=assignment.read_input(example=True))
+        == assignment.example_result
+    )
diff --git a/aoc/utils.py b/aoc/utils.py
index 6d794f4..a5de050 100644
--- a/aoc/utils.py
+++ b/aoc/utils.py
@@ -1,5 +1,6 @@
+# -*- coding: utf-8 -*-
 from typing import Callable
 
 
 def bold(item: str, condition: Callable[[], bool]):
-    return f'\033[36m{item}\033[0m' if condition() else item
+    return f"\033[36m{item}\033[0m" if condition() else item