prefer newer unittest.mock from standard library

[a-detiste]

Hi,

The good new is that VAPID enterred today in Debian.

The bad news is that we are trying to get rid of old Python 2.7-3.4 era mock backport.

Please consider this patch

[jrconlin]

Argh.
I really need to audit these and get them up-to-date, don't I?

Thanks! I'll push a new version tomorrow (Mar 31)

[jrconlin]

I'll also redo your patch so it's signed.

[a-detiste]

I really need to audit these and get them up-to-date, don't I?

To do that, one would first need to define the minimumu suported Python version.

Then from unittest.mock import patch, Mock might be enough

[a-detiste]

This use of annotations in the codebase means you requires at least Pyrhon3.7 or more.

from unittest.mock import patch should always be enough. The try/catch block is not necessary

[jrconlin]

Ah! Thanks! I'll bump the minimum version and remove the try.