is_isbn

Sign in to test your solution.
# vul de type hinting zelf aan. def is_isbn(isbn): # TODO # Zet onderstaande regel uit commentaar om lokaal te testen # print(is_isbn('9971502100'))

  Python sandbox

This window allows you to run Python code without installing a thing. The code you write here is not automatically submitted to Dodona.

Test case being debugged