Python - 元组列表，我应该使用什么条件才能使其正常工作

Question

我有一个元组列表：

lst = [
    ("Tom", "Failed"),
    ("Tom", "Success"),
    ("Kas", "Success"),
    ("Kas", "Success"),
    ("Al", "Warning"),
    ("Al", "Success",
    ("Pel", "Failed"),
    ("Pel", "Failed") 
]

我不想重复所以我使用 set():

set_lst = set(lst)

我得到：

{
  ('Al', 'Success'),
  ('Al', 'Warning'),
  ('Kas', 'Success'),
  ('Tom', 'Failed'),
  ('Tom', 'Success'),
  ('Pel', 'Failed')
}

我完全搞砸了条件并放弃了：

for x, y in set_lst:
    if len({g for _, g in set_lst}) > 1:
        y = "Success"
        print(x, y)
    elif len({g for _, g in set_lst}) <= 1:
        if y == "Failed":
            print(x, y)

我不知道在实际代码中应该如何处理。

我将警告和成功（如果是同一个人）视为成功；失败和成功（如果是同一个人）也算成功；失败为失败。

如果我有：

('Tom', 'Failed') 和 ('Tom', 'Success') -> 汤姆成功

('Al', 'Success') 和 ('Al', 'Warning') -> Al 成功

我除了：

Al Success
Kas Success
Tom Success
Pel Failed

元组列表可能会更改。

Answer 1

尝试：

lst = [
    ("Tom", "Failed"),
    ("Tom", "Success"),
    ("Kas", "Success"),
    ("Kas", "Success"),
    ("Al", "Warning"),
    ("Al", "Success"),
    ("Pel", "Failed"),
    ("Pel", "Failed"),
]

out = {}
for name, status in lst:
    if name not in out or out[name] != "Success":
        out[name] = status

out = list(out.items())
print(out)

打印：

[('Tom', 'Success'), ('Kas', 'Success'), ('Al', 'Success'), ('Pel', 'Failed')]

Python - 元组列表，我应该使用什么条件才能使其正常工作

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