Split base85.py into functions, Add doctests (#5746)

* Update base16.py

* Rename base64_encoding.py to base64.py

* Split into functions, Add doctests

* Update base16.py

ciphers/base16.py

 import base64
 
 
-def encode_to_b16(inp: str) -> bytes:
+def base16_encode(inp: str) -> bytes:
     """
     Encodes a given utf-8 string into base-16.
 
-    >>> encode_to_b16('Hello World!')
+    >>> base16_encode('Hello World!')
     b'48656C6C6F20576F726C6421'
-    >>> encode_to_b16('HELLO WORLD!')
+    >>> base16_encode('HELLO WORLD!')
     b'48454C4C4F20574F524C4421'
-    >>> encode_to_b16('')
+    >>> base16_encode('')
     b''
     """
     # encode the input into a bytes-like object and then encode b16encode that
     return base64.b16encode(inp.encode("utf-8"))
 
 
-def decode_from_b16(b16encoded: bytes) -> str:
+def base16_decode(b16encoded: bytes) -> str:
     """
     Decodes from base-16 to a utf-8 string.
 
-    >>> decode_from_b16(b'48656C6C6F20576F726C6421')
+    >>> base16_decode(b'48656C6C6F20576F726C6421')
     'Hello World!'
-    >>> decode_from_b16(b'48454C4C4F20574F524C4421')
+    >>> base16_decode(b'48454C4C4F20574F524C4421')
     'HELLO WORLD!'
-    >>> decode_from_b16(b'')
+    >>> base16_decode(b'')
     ''
     """
     # b16decode the input into bytes and decode that into a human readable string

ciphers/base85.py

 import base64
 
 
-def main() -> None:
-    inp = input("->")
-    encoded = inp.encode("utf-8")  # encoded the input (we need a bytes like object)
-    a85encoded = base64.a85encode(encoded)  # a85encoded the encoded string
-    print(a85encoded)
-    print(base64.a85decode(a85encoded).decode("utf-8"))  # decoded it
+def base85_encode(string: str) -> bytes:
+    """
+    >>> base85_encode("")
+    b''
+    >>> base85_encode("12345")
+    b'0etOA2#'
+    >>> base85_encode("base 85")
+    b'@UX=h+?24'
+    """
+    # encoded the input to a bytes-like object and then a85encode that
+    return base64.a85encode(string.encode("utf-8"))
+
+
+def base85_decode(a85encoded: bytes) -> str:
+    """
+    >>> base85_decode(b"")
+    ''
+    >>> base85_decode(b"0etOA2#")
+    '12345'
+    >>> base85_decode(b"@UX=h+?24")
+    'base 85'
+    """
+    # a85decode the input into bytes and decode that into a human readable string
+    return base64.a85decode(a85encoded).decode("utf-8")
 
 
 if __name__ == "__main__":
-    main()
+    import doctest
+
+    doctest.testmod()