-def pad(message_len, group_len, fillvalue):
- padding_length = group_len - message_len % group_len
- if padding_length == group_len: padding_length = 0
- padding = ''
- for i in range(padding_length):
- if callable(fillvalue):
- padding += fillvalue()
- else:
- padding += fillvalue
- return padding
+# fillvalue can be a function or a literal value. If a function, it is called
+# once for each padded character. Use this will fillvalue=random_english_letter
+# to pad a message with random letters.
+# """
+# padding_length = group_len - message_len % group_len
+# if padding_length == group_len: padding_length = 0
+# padding = ''
+# for i in range(padding_length):
+# if callable(fillvalue):
+# padding += fillvalue()
+# else:
+# padding += fillvalue
+# return padding