Bonjour je commence la prise en main de Pygame et j'aimerai faire detecter mes touches sauf que lorsque j'exécute mon code il m'affiche une erreur et je ne la comprend pas. Merci à vous.

t'as oublié d'indenter après ta boucle for

Putting in an extra space or leaving one out where it is needed will surely generate an error message . Some common causes of this error include:

Forgetting to indent the statements within a compound statement
Forgetting to indent the statements of a user-defined function.

The error message IndentationError: expected an indented block would seem to indicate that you have an indentation error. It is probably caused by a mix of tabs and spaces. The indentation can be any consistent white space . It is recommended to use 4 spaces for indentation in Python, tabulation or a different number of spaces may work, but it is also known to cause trouble at times. Tabs are a bad idea because they may create different amount if spacing in different editors .

http://net-informations.com/python/err/indentation.htm