Architecture

Packages¶

• thebe-core provides a set of runtime object that re-use and wrap certain components and services provided by juptyerlab. The aim is to provide a simplified interface, abstracting away from Jupyter (lab) & lumino internals and types, that can be used in a web application to connect to juptyer services, interact with them and track state.
• thebe-lite provides the means to start a JupyterLiteServer and bundles all Jupyterlite dependencies in isolation
• thebe uses thebe-core with codemirror to turn code blocks on a how web page into interactive cells and allow them to be executed.

Runtime Objects¶

The main objects provided are shown below in their default configuration.

In each object only some key members / properties are shown, the role of these and their scope is explained below:

• A Config object holds the set of current options alongside a ThebeEvents instance. A configuration culd be provided per application or per page.
  • ThebeEvents is an object that provided jquery-like events interface trigger, on, one, off, all objects that receive the `configc instance will use the same events object.
• A ThebeServer holds the SessionManager (ServiceManager in the case of JupyterLite)
  • it provides member function to establish a connecton
  • it provides functions to start a new or connect to an existing session/kernel
• A ThebeSession holds a kernel connection and is used to interact with the kernel
  • The session also creates an instance of a WidgetManager that is shared between all RendermimeRegistryies in notebooks or cells that attach to it
• A ThebeNotebook holds a list of cells and provides funcitons to load source code into cells and execute them
  • A notebook holds a RendermimeRegistry that is shared with aii it's cells
• A ThebeCell holds source code and can be executed in a session.
  • ThebeCell inherits from PassiveThebeCell which is only concerned with attaching to the DOM and rendering an OutputArea
  • If created independently of a ThebeNotebook it will hold it's own instance of a RendermimeRegistry