Update: I saw the message about installing python3-websockets directly from .deb, and now I can install 3.0.2 properly from the deb file, but now a different error occurs:

Traceback (most recent call last):

File "/usr/bin/openlp", line 33, in <module>

sys.exit(load_entry_point('OpenLP==3.0.2', 'gui_scripts', 'openlp')())

File "/usr/bin/openlp", line 25, in importlib_load_entry_point

return next(matches).load()

File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 171, in load

module = import_module(match.group('module'))

File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module

return _bootstrap._gcd_import(name[level:], package, level)

File "<frozen importlib._bootstrap>", line 1050, in _gcd_import

File "<frozen importlib._bootstrap>", line 1027, in _find_and_load

File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked

File "<frozen importlib._bootstrap>", line 688, in _load_unlocked

File "<frozen importlib._bootstrap_external>", line 883, in exec_module

File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed

File "/usr/lib/python3/dist-packages/openlp/__main__.py", line 31, in <module>

from openlp.core.app import main

File "/usr/lib/python3/dist-packages/openlp/core/app.py", line 40, in <module>

from openlp.core.api.deploy import check_for_remote_update

File "/usr/lib/python3/dist-packages/openlp/core/api/__init__.py", line 27, in <module>

from openlp.core.api.versions import v2

File "/usr/lib/python3/dist-packages/openlp/core/api/versions/v2/__init__.py", line 25, in <module>

from openlp.core.api.versions.v2.plugins import plugins, alert_1_views, alert_2_views

File "/usr/lib/python3/dist-packages/openlp/core/api/versions/v2/plugins.py", line 32, in <module>

from openlp.plugins.songs.lib import transpose_lyrics

File "/usr/lib/python3/dist-packages/openlp/plugins/songs/lib/__init__.py", line 35, in <module>

from openlp.plugins.songs.lib.db import Author, MediaFile, Song

File "/usr/lib/python3/dist-packages/openlp/plugins/songs/lib/db.py", line 26, in <module>

from sqlalchemy.orm import class_mapper, mapper, reconstructor, relation

ImportError: cannot import name 'relation' from 'sqlalchemy.orm' (/home/ianknight/.local/lib/python3.10/site-packages/sqlalchemy/orm/__init__.py)