Hi,
the requirement concerning the address states that you must have address in Denmark at latest the day before you start the study and again at latest 14 days after finishing study. It is not a requirement that you have address in Denmark while studying.
So in your case - if the 1 week without address is not placed at the early start of study, there should be no problem.
Remember to apply for membership with A-kasse at latest 14 days after finishing study, but better do it before that..
Best regards,
Anders, www.a-kasser.dk