如何获得按字母顺序排序的名称列表组合？

Question

我有一份名单如下：

names_list = ['Acosta Jose','Bailey Tyler','Barbosa Roberto','Calabro James','Carasone Allison','Adams Zane','Brencher Tim','Chacon Ramon','Arce Manuel']

我想把每个字母的名字组合起来。

例如:字母名是：'Acosta Jose'，'Adams Zane'，'Arce Manuel'

这里所需的组合如下：

Acosta Jose Adams Zane
Acosta Jose Arce Manuel
Adams Zane Arce Manuel

给定名称列表的最终所需输出是：

[['Acosta Jose, Adams Zane',
  'Acosta Jose,Arce Manuel',
  'Adams Zane, Arce Manuel'],
 ['Bailey Tyler, Barbosa Roberto',
  'Bailey Tyler, Brencher Tim',
  'Barbosa Roberto, Brencher Tim'],
 ['Calabro James, Carasone Allison',
  'Calabro James, Chacon Ramon',
  'Carasone Allison ,Chacon Ramon']]

Answer 1

问题中所显示的输出是相当混乱的。然而，描述似乎表明，这是所需的：

from itertools import combinations

names_list = ['Acosta Jose','Bailey Tyler','Barbosa Roberto','Calabro James','Carasone Allison','Adams Zane','Brencher Tim','Chacon Ramon','Arce Manuel']

ds = {}

for name in sorted(names_list):
    ds.setdefault(name[0], []).append(name)

output = ([[f'{a}, {b}' for a, b in combinations(e, 2)] for e in ds.values()])

print(output)

输出：

[['Acosta Jose, Adams Zane', 'Acosta Jose, Arce Manuel', 'Adams Zane, Arce Manuel'], ['Bailey Tyler, Barbosa Roberto', 'Bailey Tyler, Brencher Tim', 'Barbosa Roberto, Brencher Tim'], ['Calabro James, Carasone Allison', 'Calabro James, Chacon Ramon', 'Carasone Allison, Chacon Ramon']]

Answer 2

尝试：

import itertools
named_list = ['Acosta Jose','Adams Zane','Arce Manuel']
print(sorted(list(map(', '.join, itertools.permutations(named_list, 2)))))

结果：

['Acosta Jose, Adams Zane',
 'Acosta Jose, Arce Manuel',
 'Adams Zane, Acosta Jose',
 'Adams Zane, Arce Manuel',
 'Arce Manuel, Acosta Jose',
 'Arce Manuel, Adams Zane']

Answer 3

这是我的看法：

import string, itertools

names_list = ['Acosta Jose','Bailey Tyler','Barbosa Roberto','Calabro James','Carasone Allison','Adams Zane','Brencher Tim','Chacon Ramon','Arce Manuel']
names_sorted = []
result = []

for a in string.ascii_uppercase:
    temp = []
    for name in names_list:
        if name.startswith(a):
            temp.append(name)
    if temp:
        names_sorted.append(temp)

for name in names_sorted:
    result.append(sorted(list(map(', '.join, itertools.combinations(name, 2)))))

print(result)

结果：

[
    ['Acosta Jose, Adams Zane', 'Acosta Jose, Arce Manuel', 'Adams Zane, Arce Manuel'],
    ['Bailey Tyler, Barbosa Roberto', 'Bailey Tyler, Brencher Tim', 'Barbosa Roberto, Brencher Tim'],
    ['Calabro James, Carasone Allison', 'Calabro James, Chacon Ramon', 'Carasone Allison, Chacon Ramon']
]

编辑:根据Stuart注释将排列更改为组合。