JupyterLab  is a popular Integrated Development Environment and "the next-generation web-based user interface for Project Jupyter." Code Ocean implements a User Interface based on JupyterLab by default, with many of the IDE's features available at a glance.

Another option is to use JupyterLab as a Cloud Workstation session , where you can start new Python files or Jupyter Notebooks, or run smaller segments of code without executing a master script. 

If your capsule has a pip  or conda installer available, click the Cloud Workstation dropdown and select JupyterLab:

This will automatically launch the typical JupyterLab interface.

Note: If you don't have pip or conda installers available, click the 'Environment' icon to access your environment configuration screen add python3-pip and python3-setuptools  via apt-get, and then add jupyterlab via the pip3 installer that pops up.

General notes:

  1. Leaving a Cloud Workstation running will continuously use quota; click 'Shut Down Cloud Workstation' to close the session.
  2. Every 30 minutes, your session will ask you if you are still there. This is to prevent an idly open session from exhausting your quota. 
  3. Changes to code and data in a Cloud Workstation will be synced back to your capsule. Any changes to /results  or the environment will not be. Please record changes you made to either, and re-implement them in a non-interactive session, if you wish to save them.
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