jupyter-nbmodel-client 0.3.0

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jupyter_nbmodel_client

Client to interact with Jupyter notebook model.

Install

To install the extension, execute:

pip install jupyter_nbmodel_client

Usage

1. Ensure you have an environment with jupyter-server-ydoc installed.

To reproduce the above video you will need to install jupyterlab, jupyter-collaboration and scikit-learn and matplotlib for the notebook demo.

1. Start the server jupyter server (or JupyterLab like in the video)

2. Write down the URL (usually http://localhost:8888) and the server token

3. Open a Python terminal

4. Execute the following snippet to add a cell

from jupyter_nbmodel_client import NbModelClient

with NbModelClient(server_url="http://localhost:8888", token="...", path="test.ipynb") as notebook:
    notebook.add_code_cell("print('hello world')")

1. Another example adding a cell and executing within a kernel process

from jupyter_kernel_client import KernelClient
from jupyter_nbmodel_client import NbModelClient

with KernelClient(server_url="http://localhost:8888", token="...") as kernel:
    with NbModelClient(server_url="http://localhost:8888", token="...", path="test.ipynb") as notebook:
        cell_index = notebook.add_code_cell("print('hello world')")
        results = notebook.execute_cell(cell_index, kernel)

        assert results["status"] == "ok"
        assert len(results["outputs"]) > 0

[!NOTE] Instead of using the clients as context manager, you can call the start() and stop() methods.

from jupyter_nbmodel_client import NbModelClient

kernel = KernelClient(server_url="http://localhost:8888", token="...")
kernel.start()
try:
    notebook = NbModelClient(server_url="http://localhost:8888", token="...", path="test.ipynb"):
    notebook.start()
    try:
        cell_index = notebook.add_code_cell("print('hello world')")
        results = notebook.execute_cell(cell_index, kernel)
    finally:
        notebook.stop()
finally:
    kernel.stop()

Uninstall

To remove the extension, execute:

pip uninstall jupyter_nbmodel_client

Troubleshoot

If you are seeing the frontend extension, but it is not working, check that the server extension is enabled:

jupyter server extension list

Contributing

Development install

# Clone the repo to your local environment
# Change directory to the jupyter_nbmodel_client directory
# Install package in development mode - will automatically enable
# The server extension.
pip install -e ".[test,lint,typing]"

Running Tests

Install dependencies:

pip install -e ".[test]"

To run the python tests, use:

pytest

Development uninstall

pip uninstall jupyter_nbmodel_client

Packaging the extension

See RELEASE