Warning! It seems that you are using Dodona within another webpage, so not everything may work properly. Let your teacher know so that he can solve the problem by adjusting a setting in the learning environment. In the meantime, you can click this link to open Dodona in a new window.
Warning! The page was not fully loaded, probably because of a network issue. It could be that not all functionalities work as expected. Please try reloading the page.
Python exercise
tel_letters
Sign in to hand in your solution and get feedback.
# vul de type hinting zelf aan.
def tel_letters(zin):
# TO DO
return 0
# Zet onderstaande regel uit commentaar om lokaal te testen
# print(tel_letters("Hallo! Hoe gaat het?"))