A significant feature of the JupyterLab application is the file browser, where workspace storage can be viewed, and files can be uploaded and existing files downloaded.
What Python packages are available in the JupyterLab environment? Try
pip list in the Terminal to see the current set of packages.
These are set in the Dockerfile for the JupyterLab application (master version, latest development version). If you would like to add any packages here, please open an issue or a Pull Request on the Dockerfile.