Jupyter missing _sqlite3 and pysqlite2
I was missing libsqlite3-dev when building Python3.So after running sudo apt-get install libsqlite3-dev and rebuilding Python3 everything seems to work now.
I am on Centos 7 and built Python3.8 from source. Indeed as Suppenkasper said I needed to first sudo yum install libsqlite3x-devel.x86_64 before rebuilding Python3.8 using sudo make altinstall.
You can find the exact sqlite package name through yum list | grep sqlite.
I have to reinstall the python and it works again.