# only_remove_duplicates.py

# only_remove_duplicates.py

old = [99, 0, 5, 5, 4, 3, 5, 3, 2, 1]
new = list(dict.fromkeys(old).keys())
print(new, 'fromkeys(~) maintains the order')

# rather than...
new = list(set(old))
print(new, 'set(~) has changed the order')