ModuleNotFoundError: No module named 'sqlalchemy'

ubuntu 24.04 seafile-pro-server-11.0.7 mysql 8.4.0 LTS
./seahub.sh start
Traceback (most recent call last):
File “”, line 198, in _run_module_as_main
File “”, line 88, in _run_code
File “/opt/seafile-pro-server-11.0.7/pro/python/seafevents/main.py”, line 6, in
from seafevents.db import create_db_tables, prepare_db_tables
File “/opt/seafile-pro-server-11.0.7/pro/python/seafevents/db.py”, line 7, in
from sqlalchemy import create_engine
ModuleNotFoundError: No module named ‘sqlalchemy’

As the message says, you are missing some python dependencies. Just check the manual on installing 11.x for what is needed.

Thank you for your reply. All components have been installed, but the same issue persists

Is it the correct version? System-wide installed or just local user?
“pip3 list” shows for me “SQLAlchemy 2.0.18”

The root used is installed in the pip environment under python3- m venv myenv. SQLAlchemy 2.0.18 can be seen under python3- m venv myenv. However, after deactivating myenv, the pip3 list does not contain SQLAlchemy