python3-jupyter-client 5.3.3-1 (amd64 binary) in ubuntu focal

 This software component contains the reference implementation
 of the Jupyter protocol. It also provides client and kernel
 management APIs to work with kernels, the "jupyter kernelspec"
 entry point to install kernelspecs for use with Jupyter frontends
 and the "jupyter run" command to execute a script on a jupyter kernel.
 .
 This package installs the library for Python 3.