📋 waxtablet

Waxtablet is an efficient, opinionated client for notebooks to interface with the Language Server Protocol.

It handles document synchronization and request processing, so you can integrate LSP (e.g., basedpyright or ty) into a remote notebook product, without needing to manually synchronize every document edit, which can be slow or tricky running over the network.

Use cases

In a remote Jupyter kernel, the primary requests would be:

• textDocument/hover: Information about a symbol at a given line and character.
• textDocument/completion: Get a list of completions while typing.
• textDocument/semanticTokens: Compute semantic highlighting for a range of code.

While LSP has been designed for local IDEs, waxtablet stores its own internal representation of all the cells. The goal is to get diagnostics from a remote server without needing to literally buffer or send every keystroke.

Example

import waxtablet


# Initialize an empty notebook (default).
lsp = waxtablet.NotebookLsp(
    server=["basedpyright", "--stdio"],
    # server=["ty", "server"],
)
await lsp.start()

# Example usage
await lsp.add_cell("cell1", index=0, kind=waxtablet.CellKind.CODE)
await lsp.set_text("cell1", "print('Hello, world!')\ndic")
await lsp.hover("cell1", line=0, character=0)
await lsp.completion("cell1", line=1, character=3)

# Shutdown the server
await lsp.shutdown()

License

Code is released under the MIT License.