我如何添加另一个简单的 function 以添加两个选项以按数字升序和降序对此代码进行排序？

Question

Thank you for everyone who has helped. i have made the code work thanks to one comment pointing out my mistake, i would now like to add a function for 2 more options to sort this code numerically ascending and descending

fruit= [["apples", 5], ["pears", 10], ["oranges", 6], ["bananas", 12], ["grapes", 100]]

items= [["cars",3], ["sheets",5], ["bananas",8], ["bridges",17], ["roads",0], ["doors",1]]

colours= [["blue",1], ["black",7], ["orange",13], ["yellow",2], ["red",8], ["blue",5]]


merge = fruit + items + colours
result = set(
    (item, sum(quantity for label, quantity in merge if label == item))
    for item, _ in merge
)

print ()        
print ("SHOW DATA")
print ()

print ("fruit :", fruit)
print ("items :", items)
print ("colours :", colours)

print ()
print ("WHICH ORDER?")
print ()

print ("1 = Alphabetically Ascending")
print ("2 = Alphabetically Descending")
print ("")
SortOrder = int(input ("Enter the sort order you prefer for the merged data >"))

if (SortOrder == 1):
    lists = sorted(result)
    for l in lists:
       print(l)

elif (SortOrder == 2):
    lists = sorted(result, reverse=True)
    for l in lists:
       print(l)

Answer 1

A set does not have the .sort() method, you need to use the sorted() method, and you are looping through lists which in not defined.

Here is a solution:

if (SortOrder == 1):
    lists = sorted(result)
    for l in lists:
       print(l)
elif (SortOrder == 2):
    lists = sorted(result, reverse=True)
    for l in lists:
       print(l)