Traceback (most recent call last):


 "/usr/local/bin/certbot", line 11, in <module>

sys.exit(main())


 "/usr/local/lib/python2.7/dist-packages/certbot/main.py", line 722, in main

plugins = plugins_disco.PluginsRegistry.find_all()


 "/usr/local/lib/python2.7/dist-packages/certbot/plugins/disco.py", line 193, in find_all

plugin_ep = PluginEntryPoint(entry_point)


 "/usr/local/lib/python2.7/dist-packages/certbot/plugins/disco.py", line 40, in __init__

self.plugin_cls = entry_point.load()


 "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2291, in load

return self.resolve()


 "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2297, in resolve

module = __import__(self.module_name, fromlist=['__name__'], level=0)


 "/usr/lib/python2.7/dist-packages/certbot_nginx/configurator.py", line 65, in <module>

class NginxConfigurator(common.Installer):
AttributeError: 'module' object has no attribute 'Installer'

Traceback (most recent call last):


 "/usr/local/bin/kb", line 11, in <module>

load_entry_point('kb==0.1.1', 'console_scripts', 'kb')()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 490, in load_entry_point

return get_distribution(dist).load_entry_point(group, name)


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2859, in load_entry_point

return ep.load()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2450, in load

return self.resolve()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2456, in resolve

module = __import__(self.module_name, fromlist=['__name__'], level=0)


 "/usr/local/lib/python3.8/dist-packages/kb-0.1.1-py3.8.egg/kb/main.py", line 19, in <module>

from kb.commands.add import add


 "/usr/local/lib/python3.8/dist-packages/kb-0.1.1-py3.8.egg/kb/commands/add.py", line 19, in <module>

import kb.db as db


 "/usr/local/lib/python3.8/dist-packages/kb-0.1.1-py3.8.egg/kb/db.py", line 21, in <module>

from kb.entities.artifact import Artifact


 "/usr/local/lib/python3.8/dist-packages/kb-0.1.1-py3.8.egg/kb/entities/artifact.py", line 18, in <module>

@attr.s(auto_attribs=True, frozen=True, slots=True)
AttributeError: module 'attr' has no attribute 's'
