Submitting Code

How to submit your code to Gradescope for grading.

Before You Submit

Test Your Code

Always run your code locally first:

1. Click Run Code
2. Check the output matches expectations
3. Fix any errors

Common Pre-Submit Checklist

• [ ] Code runs without errors
• [ ] Output looks correct
• [ ] All functions are implemented
• [ ] No debug print() statements left in

Submitting

Step 1: Click Submit

Click the green Submit Code button in the bottom bar.

Step 2: Wait for Confirmation

You'll see the status change:

1. "Submitting..." — Your code is being sent
2. "Submitted successfully" — Done!

Step 3: View Results

A link appears: "View on Gradescope"

Click it to see:

• Your submitted code
• Autograder results
• Your score
• Any feedback

What Happens Behind the Scenes

Click "Submit Code"
    ↓
Code sent to server
    ↓
Server submits to Gradescope API
    ↓
Gradescope receives your code
    ↓
Autograder runs your code
    ↓
Results available on Gradescope

Submission Errors

"No valid Gradescope session"

Cause: The server's Gradescope credentials expired.

What to do: Contact your instructor. They need to refresh the credentials.

"Missing required fields"

Cause: Assignment not configured correctly.

What to do: Make sure you're accessing the assignment through D2L, not directly.

"Submission failed"

Cause: Network error or Gradescope issue.

What to do:

1. Wait a moment
2. Try submitting again
3. If it persists, contact your instructor

Multiple Submissions

Can I Submit Multiple Times?

Yes! You can submit as many times as you want before the deadline.

Which Submission Counts?

Typically, your last submission is graded. Check with your instructor for their policy.

Viewing Past Submissions

On Gradescope:

1. Go to the assignment
2. Click Submission History
3. See all your submissions with timestamps

After Submitting

Check Your Score

On Gradescope, you'll see:

• Total score — Your overall grade
• Test results — Which tests passed/failed
• Feedback — Comments from the autograder

Understanding Test Results

Result	Meaning
✓ Passed	Your code produced the correct output
✗ Failed	Output didn't match expected
Error	Your code crashed during the test

If Tests Fail

1. Read the test name — it often hints at what's being tested
2. Check the expected vs. actual output
3. Fix your code
4. Submit again

Tips

Submit Early

Don't wait until the last minute. Submit early to:

• Verify your submission works
• See autograder feedback
• Have time to fix issues

Keep a Backup

Copy your code somewhere safe (notes, email, etc.) before submitting, just in case.

Read the Feedback

Autograder feedback often tells you exactly what's wrong. Read it carefully!