Grading Project Updating Score with Dropped Student

[scott-yj-yang]

When doing

    grading.grade_project(
        repo=repo,
        component="proposal",
        assignment_id=*****,
        post=True
    )

File ~/anaconda3/lib/python3.10/site-packages/CanvasGroupy/grading.py:116, in Grading.grade_project(self, repo, component, assignment_id, canvas_group_name, canvas_group_category, post)
    114     return
    115 issue = self.fetch_issue(repo, component)
--> 116 self.update_canvas_score(group_name, assignment_id, score, issue, post)

File ~/anaconda3/lib/python3.10/site-packages/CanvasGroupy/grading.py:79, in Grading.update_canvas_score(self, group_name, assignment_id, score, issue, post)
     77 self.cg.link_assignment(assignment_id)
     78 for member in members:
---> 79     student_id = self.cg.email_to_canvas_id[member]
     80     text_comment = f"Group: {group_name}"
     81     if issue is not None:

KeyError: '***'

This will happen when we sync grades for a group member who dropped out of the class. Need to use try-except syntax to catch this case.