x = set()
#items stored here to display by adding items from x
display_list = []
#items stored here to be counted
count_list = []
while True:
items = input("> ").upper()
if items != "Q":
x.add(items)
count_list.append(items)
count_list.count(items)
elif items == "Q":
display_list.extend(x)
display_list.sort()
for items in display_list:
print(f"{count_list.count(items)} {items}")
exit()
Ctrl+D is the sequence in Linux and MacOS. For the equivalent in Windows you need to do Ctrl+Z
followed by <Enter>
Then you'll need to change your code so that instead of checking for an input of "Q", you need to wrap your input() call in a try: / except EOFERROR:
block