我有一个Python问题,可以用多个嵌套
for
循环,但我想知道是否有一个更简单的方法来解决这个问题,也许通过添加列表项和删除重复项。
main_list = [["user1@test.com", "Administration", "100"],
["user2@test.com", "Testing", "30"],
["user2@test.com", "Development", "45"],
["user2@test.com", "Development", "90"],
["user2@test.com", "Development", "35"],
["user3@test.com", "Development", "400"],
["user3@test.com", "Administration", "95"],
["user3@test.com", "Testing", "200"]]
我需要合并电子邮件地址和类别(前两个列表元素)并将重复的第三个条目添加到一起。
所以[user2,development]来自:
["user2@test.com", "Development", "45"],
["user2@test.com", "Development", "90"],
["user2@test.com", "Development", "35"],
致:
["user2@test.com", "Development", "170"]
谢谢您!
