jupyterlab/scripts/create_theme.py

# coding: utf-8
"""JupyterLab command handler"""

# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.

import pexpect
child = pexpect.spawn('node buildutils/lib/create-theme.js')
child.expect('name:')
child.sendline('foo')
child.expect('title:')
child.sendline('Foo')
child.expect('description:')
child.sendline('foo theme')
child.expect('Created new theme')