ModuleNotFoundError: No module named 'lib.chatutils'; 'lib' is not a package (Python 3.11)

[greenaar]

Describe the bug Errbot running on python 3.11 in docker, unable to load a python library into a plugin

To Reproduce plugin code:

import lib.chatutils
from errbot import BotPlugin, botcmd

chatutils = ChatUtils()

class MyTest(BotPlugin):
    """Perform system level commands"""

    @botcmd()
    def am_i_admin(self, msg, _):
        admin = chatutils.is_admin(msg)
        chatutils.reply(bot_self=self, msg=msg, body=f"{chatutils.handle(msg)} {admin}")

python library (in plugins/lib/chatutils.py)

import os
import re

class ChatUtils:
    """
    A collection of common utilities used throughout the repo
    """
    def is_admin(self, msg, admins):
        if self.handle(msg) in admins:
            return True
        return False

    def handle(self, msg):
        return str(msg.frm).split("/")[1]

Expected behavior Errbot should load the plugin.

** Actual behavior **

2024-04-22 19:54:18,251 INFO     errbot.core               Some plugins failed to start during bot startup:

Traceback (most recent call last):
  File "/errbot-data/lib/python3.11/site-packages/errbot/plugin_manager.py", line 289, in _load_plugins_generic
    plugin_classes = plugin_info.load_plugin_classes(
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/errbot-data/lib/python3.11/site-packages/errbot/plugin_info.py", line 100, in load_plugin_classes
    spec.loader.exec_module(modu1e)
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/errbot-data/eks-ops/errbot/plugins/mytest/mytest.py", line 5, in <module>
    import lib.chatutils
ModuleNotFoundError: No module named 'lib.chatutils'; 'lib' is not a package
Error: MyTest failed to activate: 'NoneType' object has no attribute 'is_activated'.

Environment (please complete the following information):

• Errbot version: 6.2.0
• OS version: Debian 12
• Python version: Python 3.11.2
• Using a virtual environment: yes
• Using Docker: yes

Additional context

Config.py includes a reference to plugins, and sys.path via errbot returns:

Path: ['/errbot-data/code', '/errbot-data/code', '/errbot-data/bin', '/usr/lib/python311.zip', '/usr/lib/python3.11', '/usr/lib/python3.11/lib-dynload', '/errbot-data/lib/python3.11/site-packages', '/errbot-data/lib/python3.11/site-packages/errbot/storage', '/errbot-data/eks-ops/errbot/backends/err-backend-slackv3/src/slackv3', '/errbot-data/lib/python3.11/site-packages/errbot/core_plugins', '/errbot-data/eks-ops/errbot/plugins/mytest', '/errbot-data/eks-ops/errbot/plugins/ops', '/errbot-data/eks-ops/errbot/plugins/Git', '/errbot-data/eks-ops/errbot/plugins']

This includes (last entry) the plugins/ dir in the search path.

[greenaar]

Further context. Same code, duplicate errbot running under Python 3.10.12 - this does not occur.

Same code, running on Python 3.11.2 not inside a docker container, still occurs.

[greenaar]

Still no idea. Is this a python issue? A debian 12 issue? Something else? Next attempt will have to be something other than debian 12, to see if it's related to that particular bundling.

I guess imports like mentioned https://errbot.readthedocs.io/en/latest/user_guide/plugin_development/basics.html#python-submodules aren't that common?

[greenaar]

Ok, further information -- this does not occur on Ubuntu 24.04, running python 3.12.3. It also doesn't occur on Ubuntu 22.04 running 3.10.12.

Something debian specific? Going to spin up a debian 12 host to validate.

[greenaar]

Ok. it's not debian OR python related.

When loading the slack backend, this occurs. When using the Text or Discord backends, it does not. I'm moving this ticket to https://github.com/errbotio/err-backend-slackv3/issues/105