After working on an assignment, the student can submit their version for grading using nbgrader submit and passing the name of the assignment and the name of the class:
In [ ]:
%%bash
export HOME=/tmp/student_home && cd $HOME
nbgrader submit "Problem Set 1" "example_course"
Students can see what assignments they have submitted using nbgrader list --inbound:
In [ ]:
%%bash
export HOME=/tmp/student_home && cd $HOME
nbgrader list "example_course" --inbound
Importantly, students can run nbgrader submit as many times as they want, and all submitted copies of the assignment will be preserved:
In [ ]:
%%bash
export HOME=/tmp/student_home && cd $HOME
nbgrader submit "Problem Set 1" "example_course"
We can see all versions that have been submitted by again running nbgrader list --inbound:
In [ ]:
%%bash
export HOME=/tmp/student_home && cd $HOME
nbgrader list "example_course" --inbound