python对元组形式的库存清单进行排序

"""
作者：皮蛋编程(https://www.pidancode.com)
创建日期：2022/3/25
功能描述：python对元组形式的库存清单进行排序
"""

import operator

# 创建库存清单列表
inventory = [('apple', 35), ('grape', 967), ('banana', 12), ('pear', 5), ('cumquat', 10)]
print('-' * 50)  # 输出50个中划线
print("原始库存列表:")
print(inventory)
# 创建排序Key
# 名称和数量分别为元组的0和1项
getcount = operator.itemgetter(1)
print("按照数量排序:")
sortedInventory = sorted(inventory, key=getcount)
print(sortedInventory)
# 更漂亮的格式输出
print("Fruit inventory:")
for item in sortedInventory:
    print("%-10s%6d" % (item[0], item[1]))

--------------------------------------------------
Original inventory list:
[('apple', 35), ('grape', 967), ('banana', 12), ('pear', 5), ('cumquat', 10)]
Inventory list sorted by item count:
[('pear', 5), ('cumquat', 10), ('banana', 12), ('apple', 35), ('grape', 967)]
Fruit inventory:
pear           5
cumquat       10
banana        12
apple         35
grape        967