Apply REPL-style print to student code in unit_test mode #15

Job	Run time
Test (3.12)	45s
deploy / Setup	4s
deploy / deploy-staging / build-aws / Build (staging)	53s
deploy / deploy-staging / build-gcp	0s
deploy / deploy-staging / deploy-gcp-staging	0s
deploy / deploy-staging / deploy-staging-aws / Deploy (staging)	7s
deploy / Run Staging Validation Tests	-1s
deploy / Await Manual Approval (Tests Failed)	-1s
deploy / deploy-production	-1s
	1m 46s

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