Otter-grader is a new, open-source, local grader from the Division of Data Science, External Pedagogy Infrastructure at UC Berkeley. It is designed to be a scalable grader that utilizes temporal docker containers in order to remove the traditional overhead requirement of a live server.
Otter-grader can be installed using pip:
pip install otter-grader
Otter also requires you to have its Docker image installed, which is where it executes notebooks. The docker image can be installed in two ways:
To pull the image from DockerHub, run docker pull ucbdsinfra/otter-grader.
To install from the GitHub repo, follow the steps below:
- Clone the GitHub repo
cdinto theotter-grader/dockerdirectory- Build the Docker image with this command:
docker build . -t YOUR_DESIRED_IMAGE_NAME
Note: With this setup, you will need to pass in a custom docker image name when using the CLI.
You can find the documentation in the demo notebook by clicking the Binder link above, or by viewing the static HTML version here.