/etc/cron.daily/borgmatic:
Traceback (most recent call last):
  File "/usr/local/bin/borgmatic", line 7, in <module>
    from borgmatic.commands.borgmatic import main
  File "/usr/local/lib/python3.6/dist-packages/borgmatic/commands/borgmatic.py", line 22, in <module>
    from borgmatic.config import checks, collect, convert, validate
  File "/usr/local/lib/python3.6/dist-packages/borgmatic/config/convert.py", line 3, in <module>
    from ruamel import yaml
ModuleNotFoundError: No module named 'ruamel'
run-parts: /etc/cron.daily/borgmatic exited with return code 1

/etc/cron.daily/borgmatic:
Traceback (most recent call last):
  File "/usr/local/bin/borgmatic", line 7, in <module>
    from borgmatic.commands.borgmatic import main
ModuleNotFoundError: No module named 'borgmatic'
run-parts: /etc/cron.daily/borgmatic exited with return code 1