Dash Core Components
This package provides the core React component suite for Dash.
dash package contains some tools to build components and drive the bundles build process.
To avoid the circular dependency situation, we don't add
dash as a required install in the
But, in order to do development locally, you need to install
dash before everything.
- Install the dependencies with:
# it's recommended to install your python packages in a virtualenv # python 2 $ pip install virtualenv --user && virtualenv venv && . venv/bin/activate # python 3 $ python -m venv venv && . venv/bin/activate # make sure dash is installed with dev and testing dependencies $ pip install dash[dev,testing] # in some shells you need \ to escape  # run the build process $ npm i --ignore-scripts && npm run build # install dcc in editable mode $ pip install -e .
You can start up a demo development server to see a demo of the rendered components:
$ npm start
You have to maintain the list of components in
Code quality and tests
To run integration tests (test_integration.py)
You can run the Selenium integration tests with the
command, and the Jest unit tests with the
npm run test-unit
Testing your components in Dash
Run the build watcher by running $ npm run build:watch
Run the dash layout you want to test
# Import dash_core_components to your layout, then run it: $ python my_dash_layout.py
Uninstalling python package locally
$ npm run uninstall-local
There's an npm script that will handle publish, provided you have the right credentials. You can run it by running
$ npm run publish-all
See the Publishing New Components/Features section of the Contributing guide for step-by-step instructions on publishing new components.
Dash Component Boilerplate
See the dash-component-boilerplate repo for more information.