Example of how to get a homework assignment (name worksheet 10) from Canvas API and put it in the correct directory for grading with nbgrader

get_worksheet_10.py

import os
import shutil
import requests
import urllib
from urllib.request import urlretrieve

canvas_token = os.environ["CANVAS_TOKEN"]
resp = requests.get(
      url=f"https://canvas.ubc.ca/api/v1/courses/19078/assignments/313587/gradeable_students",
      headers={
        "Authorization": f"Bearer {canvas_token}",
        "Accept": "application/json+canvas-string-ids"
      },
      json={
        "per_page": "100"
      },
    )
students = resp.json()
student_list = []
for student in students:
    student_list.append(student['id'])

for student in student_list:
    try:
        os.mkdir("submitted")
    except:
        pass
    try:
        os.mkdir(os.path.join("submitted", student))
    except:
        pass
    try:
        os.mkdir(os.path.join("submitted", student, "worksheet_10"))
    except:
        pass

for student in student_list:
    resp = requests.get(
          url=f"https://canvas.ubc.ca/api/v1/courses/19078/assignments/313587/submissions/{student}",
          headers={
            "Authorization": f"Bearer {canvas_token}",
            "Accept": "application/json+canvas-string-ids"
          },
          json={
            "per_page": "100"
          },
        )
    assignments = resp.json()
    try:
        attachment = assignments['attachments']
        urlretrieve (attachment[0]['url'], os.path.join("submitted", student, "worksheet_10/worksheet_10.ipynb"))
    except:
        pass