The nbgrader system and command line tools

You may install the current version of nbgrader which includes the grading system and command line tools:

pip install nbgrader

Or, if you use Anaconda:

conda install jupyter
conda install -c conda-forge nbgrader

nbgrader extensions

Take note: If you install nbgrader via Anaconda the nbgrader extensions will be installed and enabled for you upon installation. See the Installation options and Disabling extensions sections below for more information on changing the default installation option --sys-prefix or disabling one or more extensions.

Installing and activating extensions

You can install the nbgrader extensions for Jupyter notebook. Previously this was done using the nbgrader extension install command. However, moving forward this is done using the jupyter nbextension and jupyter serverextension commands.

To install and enable all nbextensions (assignment list, create assignment, formgrader, and validate) run:

jupyter nbextension install --sys-prefix --py nbgrader --overwrite
jupyter nbextension enable --sys-prefix --py nbgrader
jupyter serverextension enable --sys-prefix --py nbgrader

To work properly, the assignment list, formgrader, and validate extensions require both the nbextension and serverextension. The create assignment extension only has an nbextension part.

Installation options

When installed/enabled with the --sys-prefix option, the nbextensions and serverextension will be installed and enabled for anyone using the particular Python installation or conda environment where nbgrader is installed. If that Python installation is available system-wide, all users will immediately be able to use the nbgrader extensions.

There are a number of ways you may need to customize the installation:

  • To install or enable the nbextensions/serverextension for just the current user, replace --sys-prefix by --user in any of the above commands.

  • To install or enable the nbextensions/serverextension for all Python installations on the system, replace --sys-prefix by --system in any of the above commands.

  • You can also use the --overwrite option along with the jupyter nbextension install command to overwrite existing nbgrader extension installation files, typically used when updating nbgrader, for example:

    jupyter nbextension install --sys-prefix --overwrite --py nbgrader

Previous versions of nbgrader required each user on a system to enable the nbextensions; this is no longer needed if the --sys-prefix option is used for a system-wide python or the --system option is used.

Disabling extensions

You may want to only install one of the nbgrader extensions. To do this, follow the above steps to install everything and then disable the extension you don’t need. For example, to disable the Assignment List extension:

jupyter nbextension disable –sys-prefix assignment_list/main –section=tree jupyter serverextension disable –sys-prefix nbgrader.server_extensions.assignment_list

or to disable the Create Assignment extension:

jupyter nbextension disable --sys-prefix create_assignment/main

or to disable the Formgrader extension:

jupyter nbextension disable --sys-prefix formgrader/main --section=tree
jupyter serverextension disable --sys-prefix nbgrader.server_extensions.formgrader

For example lets assume you have installed nbgrader via Anaconda (meaning all extensions are installed and enabled with the --sys-prefix flag, i.e. anyone using the particular Python installation or conda environment where nbgrader is installed). But you only want the create assignment extension available to a specific user and not everyone else. First you will need to disable the create assignment extension for everyone else:

jupyter nbextension disable --sys-prefix create_assignment/main

Log in with the specific user and then enable the create assignment extension only for that user:

jupyter nbextension enable --user create_assignment/main

Finally to see all installed nbextensions/server extensions, run:

jupyter nbextension list
jupyter serverextension list

For further documentation on these commands run:

jupyter nbextension --help-all
jupyter serverextension --help-all

For advanced instructions on installing the assignment list extension please see the advanced installation instructions.

Quick start

To get up and running with nbgrader quickly, you can create an example directory with example course files in it by running the nbgrader quickstart command:

nbgrader quickstart course_id

Where you should replace course_id with the name of your course. For further details on how the quickstart command works, please run:

nbgrader quickstart –help

For an explanation of how this directory is arranged, and what the different files are in it, continue reading on in The philosophy and the approach.