It's shorter, and it's used extensively in the digital signature format I'm using.

On Sep 7, 2012 6:58 AM, "Paul Moore" <p.f.moore@gmail.com> wrote:
On 6 September 2012 17:34, Daniel Holth <dholth@gmail.com> wrote:
> Proposed edits to https://bitbucket.org/dholth/python-peps/changeset/9c26fa50
>
> In wheel I use urlsafe_b64encode_nopad() which omits the trailing =
> characters, but although very easy to implement isn't included in the
> stdlib. In this spec I use the stdlib urlsafe_b64encode().

Why urlsafe_b64encode, rather than just hexdigest which is what is used for md5?

Paul.