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

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

Author: pre-commit-ci[bot]

ciphers/base62.py

@@ -2,6 +2,7 @@
 
 CHARSET = string.digits + string.ascii_lowercase + string.ascii_uppercase
 
+
 def base62_encode(num: int) -> str:
     """
     Encodes a positive integer into a base62 string.
@@ -14,7 +15,7 @@ def base62_encode(num: int) -> str:
     """
     if num == 0:
         return CHARSET[0]
-    
+
     arr = []
     base = len(CHARSET)
     while num:
@@ -23,6 +24,7 @@ def base62_encode(num: int) -> str:
     arr.reverse()
     return "".join(arr)
 
+
 def base62_decode(string_val: str) -> int:
     """
     Decodes a base62 string into a positive integer.
@@ -36,14 +38,16 @@ def base62_decode(string_val: str) -> int:
     base = len(CHARSET)
     strlen = len(string_val)
     num = 0
-    
+
     idx = 0
     for char in string_val:
         power = strlen - (idx + 1)
         num += CHARSET.index(char) * (base**power)
         idx += 1
     return num
 
+
 if __name__ == "__main__":
     import doctest
+
     doctest.testmod()