ModuleNotFoundError: No module named 'beetsplug.oldestdate' after install in Linuxserver Beets image

[SenorSmartyPants]

I wrote a script based on your install instructions for my LSIO based beets image. This is my first attempt at installing a 3rd party addon to beets.

beets-oldestdate.sh placed in custom-cont-init.d dir

#!/bin/bash

echo "**** installing beets-oldestdate ****"
mkdir -p /tmp/beets-oldestdate-src
curl -o /tmp/beets-oldestdate-src/master.zip -sL https://github.com/kernitus/beets-oldestdate/archive/refs/heads/master.zip

cd /tmp/beets-oldestdate-src
unzip -qq /tmp/beets-oldestdate-src/master.zip
cd beets-oldestdate-master
/usr/bin/python3 ./setup.py install
rm -r /tmp/beets-oldestdate-src

Docker log

 [s6-init] making user provided files available at /var/run/s6/etc...exited 0.
 [s6-init] ensuring user provided files have correct perms...exited 0.
 [fix-attrs.d] applying ownership & permissions fixes...
 [fix-attrs.d] done.
 [cont-init.d] executing container initialization scripts...
 [cont-init.d] 01-envfile: executing...
 [cont-init.d] 01-envfile: exited 0.
 [cont-init.d] 10-adduser: executing...

 -------------------------------------
           _         ()
          | |  ___   _    __
          | | / __| | |  /  \
          | | \__ \ | | | () |
          |_| |___/ |_|  \__/


 Brought to you by linuxserver.io
 -------------------------------------

 To support LSIO projects visit:
 https://www.linuxserver.io/donate/
 -------------------------------------
 GID/UID
 -------------------------------------

 User uid:    1001
 User gid:    100
 -------------------------------------

 [cont-init.d] 10-adduser: exited 0.
 [cont-init.d] 30-config: executing...
 [cont-init.d] 30-config: exited 0.
 [cont-init.d] 90-custom-folders: executing...
 [cont-init.d] 90-custom-folders: exited 0.
 [cont-init.d] 99-custom-files: executing...
 [custom-init] files found in /config/custom-cont-init.d executing
 [custom-init] beets-oldestdate.sh: executing...
 **** installing beets-oldestdate ****
 running install
 running bdist_egg
 running egg_info
 creating beets_oldestdate.egg-info
 writing beets_oldestdate.egg-info/PKG-INFO
 writing dependency_links to beets_oldestdate.egg-info/dependency_links.txt
 writing top-level names to beets_oldestdate.egg-info/top_level.txt
 writing manifest file 'beets_oldestdate.egg-info/SOURCES.txt'
 adding license file 'LICENSE' (matched pattern 'LICEN[CS]E*')
 reading manifest file 'beets_oldestdate.egg-info/SOURCES.txt'
 writing manifest file 'beets_oldestdate.egg-info/SOURCES.txt'
 installing library code to build/bdist.linux-aarch64/egg
 running install_lib
 running build_py
 creating build
 creating build/lib
 creating build/lib/beetsplug
 copying beetsplug/__init__.py -> build/lib/beetsplug
 copying beetsplug/oldestdate.py -> build/lib/beetsplug
 creating build/bdist.linux-aarch64
 creating build/bdist.linux-aarch64/egg
 creating build/bdist.linux-aarch64/egg/beetsplug
 copying build/lib/beetsplug/__init__.py -> build/bdist.linux-aarch64/egg/beetsplug
 copying build/lib/beetsplug/oldestdate.py -> build/bdist.linux-aarch64/egg/beetsplug
 byte-compiling build/bdist.linux-aarch64/egg/beetsplug/__init__.py to __init__.cpython-38.pyc
 byte-compiling build/bdist.linux-aarch64/egg/beetsplug/oldestdate.py to oldestdate.cpython-38.pyc
 creating build/bdist.linux-aarch64/egg/EGG-INFO
 copying beets_oldestdate.egg-info/PKG-INFO -> build/bdist.linux-aarch64/egg/EGG-INFO
 copying beets_oldestdate.egg-info/SOURCES.txt -> build/bdist.linux-aarch64/egg/EGG-INFO
 copying beets_oldestdate.egg-info/dependency_links.txt -> build/bdist.linux-aarch64/egg/EGG-INFO
 copying beets_oldestdate.egg-info/top_level.txt -> build/bdist.linux-aarch64/egg/EGG-INFO
 zip_safe flag not set; analyzing archive contents...
 beetsplug.__pycache__.__init__.cpython-38: module references __path__
 creating dist
 creating 'dist/beets_oldestdate-1.0.0-py3.8.egg' and adding 'build/bdist.linux-aarch64/egg' to it
 removing 'build/bdist.linux-aarch64/egg' (and everything under it)
 Processing beets_oldestdate-1.0.0-py3.8.egg
 creating /usr/lib/python3.8/site-packages/beets_oldestdate-1.0.0-py3.8.egg
 Extracting beets_oldestdate-1.0.0-py3.8.egg to /usr/lib/python3.8/site-packages
 Adding beets-oldestdate 1.0.0 to easy-install.pth file

 Installed /usr/lib/python3.8/site-packages/beets_oldestdate-1.0.0-py3.8.egg
 Processing dependencies for beets-oldestdate==1.0.0
 Finished processing dependencies for beets-oldestdate==1.0.0
 [custom-init] beets-oldestdate.sh: exited 0
 [cont-init.d] 99-custom-files: exited 0.
 [cont-init.d] done.
 [services.d] starting services
 [services.d] done.
 ** error loading plugin oldestdate:
 Traceback (most recent call last):
   File "/usr/lib/python3.8/site-packages/beets/plugins.py", line 276, in load_plugins
     namespace = __import__(modname, None, None)
 ModuleNotFoundError: No module named 'beetsplug.oldestdate'

  * Serving Flask app 'beetsplug.web' (lazy loading)
  * Environment: production
    WARNING: This is a development server. Do not use it in a production deployment.
    Use a production WSGI server instead.
  * Debug mode: off
  * Running on http://127.0.0.1:8337/ (Press CTRL+C to quit)

Install seems to run fine, no errors. config.yml includes oldestdate in plugins list. But I always get the ModuleNotFoundError error.

Any ideas?

[SenorSmartyPants]

I wasn't running the nightly LSIO image, but the latest. Once I switched to :nightly then I got the same error as #1

Maybe install instructions or setup.py needs to be updated.