Added Nbgrader

jupyterhub/nbgrader/nbgrader_config.py

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+# /srv/nbgrader/nbgrader_config.py
+c = get_config()
+
+# 1. Course Configuration
+c.CourseDirectory.course_id = "intro-to-python"  # Change to your course name
+c.CourseDirectory.root = '/srv/nbgrader/courses'
+
+# 2. Exchange Directory (for submitting/collecting assignments)
+c.Exchange.root = '/srv/nbgrader/exchange'
+c.Exchange.path_includes_course = True
+
+# 3. JupyterHub Integration
+#c.NbGrader.hub_url = 'http://jupyterhub:8081/hub/api'
+#c.NbGrader.hubapi_token = 'your-hub-token'  # Generate with: openssl rand -hex 32
+
+# 4. Database Configuration
+c.StudentAssignmentNotebook.database_url = 'sqlite:////srv/nbgrader/nbgrader.sqlite'
+
+# 5. Assignment Policies
+c.ExecutePreprocessor.timeout = 300  # 5 minutes timeout per cell
+c.ClearSolutions.code_stub = "# YOUR CODE HERE"
+c.ClearSolutions.text_stub = "YOUR ANSWER HERE"
+
+# 6. Formgrader UI Settings
+c.FormgradeApp.port = 9999
+c.FormgradeApp.authenticator_class = 'nbgrader.auth.hubauth.HubAuth'
+c.FormgradeApp.ip = '0.0.0.0'
+
+# 7. Permissions
+c.CourseDirectory.groupshared = True