[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

ciphers/break_vigenere.py

@@ -216,7 +216,5 @@ def find_key_from_vigenere_cipher(ciphertext: str) -> str:
     #     print(key)
 
 
-
 # ---------- TESTS ----------
 # def test_index_of_coincidence(f)
-

ciphers/tests/test.py

@@ -4,6 +4,6 @@
 
 class TestBreakVigenere(unittest.TestCase):
     def test_index_of_coincidence(self):
-        dictionary = {'a': 5, 'b': 1, 'c': 4}
+        dictionary = {"a": 5, "b": 1, "c": 4}
         ic = index_of_coincidence(dictionary, 100)
-        self.assertAlmostEqual(ic, 0.0032323232323232)
+        self.assertAlmostEqual(ic, 0.0032323232323232)