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

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

Author: pre-commit-ci[bot]

ciphers/des_ecb.py

@@ -544,14 +544,18 @@ def decrypt(key: str, cipher_text: str) -> str:
                 print(f"Generated key: {Des.generate_key()}")
             case "e":
                 key = input("Enter the key: ").strip()
-                if len(key) != 16 and not all(char in "0123456789abcdef" for char in key):
+                if len(key) != 16 and not all(
+                    char in "0123456789abcdef" for char in key
+                ):
                     print("Invalid key. Please try again.")
                     continue
                 input_string = input("Enter the string to encrypt: ").strip()
                 print(f"Encrypted string: {Des.encrypt(key, input_string)}")
             case "d":
                 key = input("Enter the key: ").strip()
-                if len(key) != 16 and not all(char in "0123456789abcdef" for char in key):
+                if len(key) != 16 and not all(
+                    char in "0123456789abcdef" for char in key
+                ):
                     print("Invalid key. Please try again.")
                     continue
                 cipher_text = input("Enter the cipher text to decrypt: ").strip()