ipykernel is the IPython-based Python kernel that Jupyter uses to run code; the request names it directly, so the answer centres on it, but no candidate source describes ipykernel itself. The closest alternatives are IPython, which provides the kernel support and interactive shell, and Jupyter, the notebook platform that runs on such kernels 12.

1. 1

   IPythonipython.orgverified and signed

   IPython provides Jupyter kernel support and an interactive Python shell, the foundation that the ipykernel package builds on 2.

   WebsiteGet started

   +2 community tools built for it

   for agents: Interpreter · Interactive · Shell

2. 2

   Jupyterjupyter.orgverified and signed

   Jupyter is a web-based interactive computing platform whose notebooks execute code through kernels such as ipykernel 1.

   WebsiteDocs

   +40 community tools built for it

   for agents: ipython · Interpreter · Interactive