You Have purchased 8 Bananas of 40$
You have purchased 2 Apples of 2$

line = f.readlines()
option = int(input('Select line number to edit or remove:'))
selectedline = line[option-1]
print(selectedline,'[Selected]')
action = int(input('''What you want to do
[1] Edit Quantity
[2] Remove
'''))
edit = selectedline.split()

if action == 1:
    qty = int(input('Enter new quanity'))
    edit[-1] = edit[3]/edit[-1]
    edit[3] = qty
    edit[-1] = qty
    print(edit)