Run Python code from JavaScript in a Jupyter notebook

jupyter_javascript_snippet.js

// %%javascript
window.executePython = function(python) {
    return new Promise((resolve, reject) => {
        var callbacks = {
            iopub: {
                output: (data) => resolve(data.content.text.trim())
            }
        };
        Jupyter.notebook.kernel.execute(`print(${python})`, callbacks);    
    });
}



// Use it in any Jupyter JS/HTML cell like this
%%javascript
window.executePython("1 + 1")
    .then(result => console.log(result)); // Logs 2

// You can access any defined object/method in the notebook
// I suggest writing a function that returns your data as JSON and just calling the function.