File "/home/ale/.buildout/eggs/collective.solr-8.0.0a4-py3.8.egg/collective/solr/browser/maintenance.py", line 3, in <module>
from time import time, clock, strftime
zope.configuration.xmlconfig.ZopeXMLConfigurationError: File "/home/ale/.buildout/eggs/collective.solr-8.0.0a4-py3.8.egg/collective/solr/browser/configure.zcml", line 25.2-30.38
File "/home/ale/Code/plone/projects/unibw.de/parts/instance/etc/site.zcml", line 16.2-16.23
File "/home/ale/.buildout/eggs/Products.CMFPlone-5.2.1-py3.8.egg/Products/CMFPlone/configure.zcml", line 110.2-114.8
File "/home/ale/.buildout/eggs/collective.solr-8.0.0a4-py3.8.egg/collective/solr/configure.zcml", line 34.2-34.32
ImportError: cannot import name 'clock' from 'time' (unknown location)