`nbformat:write`

Signature

def write(nb, fp, version = nbformat.NO_CONVERT, capture_validation_error = None, **kwargs)

Write a notebook to a file in a given nbformat version.

The file-like object must accept unicode input.

nb : NotebookNode: The notebook to write.
fp : file or str: Any file-like object with a write method that accepts unicode, or a path to write a file.
version : int, optional: The nbformat version to write. If nb is not this version, it will be converted. If unspecified, or specified as nbformat.NO_CONVERT, the notebook's own version will be used and no conversion performed.
capture_validation_error : dict, optional: If provided, a key of "ValidationError" with a value of the ValidationError instance will be added to the dictionary.