AttributeError: module 'bcrypt' has no attribute '__about__'

[nicheosala]

radicale --version: 3.1.8 python --version: 3.11.6 bcrypt version: 4.1.3

Just after starting Radicale, I get the following error:

(trapped) error reading bcrypt version
Traceback (most recent call last):
  File "/usr/lib/python3.11/site-packages/passlib/handlers/bcrypt.py", line 620, in _load_backend_mixin
    version = _bcrypt.__about__.__version__
              ^^^^^^^^^^^^^^^^^
AttributeError: module 'bcrypt' has no attribute '__about__'

The bcrypt team seems to have already pointed out a solution here: https://github.com/pyca/bcrypt/issues/684