Tom de Visser1,083 Points
I did it like this, it works. Is it okay?
to_do_list =  new_item = None while new_item != "DONE": if new_item != None: to_do_list.append(new_item) new_item = input() else: print(to_do_list)
[MOD: added ```python formatting -cf]
I like it - It runs fine but I suspect it's bad form to allow an if/else statement to flow outside of the containing block (WHILE block in this situation).
You can simply remove the outer 'else:' and unindent the print(to_do_list) statement:
to_do_list =  new_item = None while new_item != "DONE": if new_item: to_do_list.append(new_item) new_item = input() print(to_do_list)
I've also shortened if new_item != None as this can be treated as a slightly more readable True/False comparison where we are simply checking for a non-empty (True) new_item.