z85 avoids all of:

` \ " ' _ , ;

Backtick and semicolon increase the number of places that z85 can be used
without issue over b85. All of these might not be as big an issue in python
as in other tools/languages but interoperability would still be improved
through the addition of z85.

- Derek

On Fri, Feb 14, 2020, 09:18 Dobatymo <report@bugs.python.org> wrote:

>
> Dobatymo <the-real-hazzard@outlook.com> added the comment:
>
> base64.b85encode does not use ", ' or \ as well.
>
> That's the _b85alphabet
>
> _b85alphabet = (b"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
>                 b"abcdefghijklmnopqrstuvwxyz!#$%&()*+-;<=>?@^_`{|}~")
>
> ----------
> nosy: +Dobatymo
>
> _______________________________________
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> <https://bugs.python.org/issue31116>
> _______________________________________
>