[MM3-users] Installation Wooes

A few questions about an Ubuntu install.

I managed to add my domain to hyperkitty, created a new list and now i'm getting this behavior:

May 02 07:47:24 2020 (55358) deque:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/mailman/app/workflow.py", line 69,
in __next__
    return step()
  File "/usr/lib/python3/dist-packages/mailman/app/subscriptions.py", line
331, in _step_send_confirmation
    self._set_token(TokenOwner.subscriber)
  File "/usr/lib/python3/dist-packages/mailman/app/subscriptions.py", line
157, in _set_token
    self.token = pendings.add(pendable, timedelta(days=3650))
  File "/usr/lib/python3/dist-packages/mailman/database/transaction.py",
line 85, in wrapper
    return function(args[0], config.db.store, *args[1:], **kws)
  File "/usr/lib/python3/dist-packages/mailman/model/pending.py", line 91,
in add
    token = token_factory.new()
  File "/usr/lib/python3/dist-packages/mailman/utilities/uid.py", line 79,
in new
    return self._next_unpredictable_id()
  File "/usr/lib/python3/dist-packages/mailman/utilities/uid.py", line 155,
in _next_unpredictable_id
    x = random.random() + right_now % 1.0 + time.clock() % 1.0
AttributeError: module 'time' has no attribute 'clock'

I'm on python 3.8.2

Question #2. I'm setting up mailman 3 on sqlite for simplicity's sake. Do people find the performance of mysql / postgres worth the upgrade? 2B. Is there a migration path if I want to switch to mysql at a later date?

-- Thank you Samir Faci https://keybase.io/csgeek