你不需要删除这些块。遍历这些人，如果有电子邮件密钥，就取走它。

顺便说一下，你的文件里有一个错误。在名称的值之后，每个对象中都缺少一个逗号。

data =  [
    "name": "A",
    "email": "A@test.com",
    "admin": False,
    "groupAdmin": False,
    "profileUpdatable": True
  {"name": "B",
    "email": "B@test.com",
    "admin": False,
    "groupAdmin": False,
    "profileUpdatable": True
  {"name": "C",
    "email": "C@test.com",
    "admin": False,
    "groupAdmin": False,
    "profileUpdatable": True
  {"name": "A",
    "admin": False,
    "groupAdmin": False,
    "profileUpdatable": True
def get_emails(data: list):
    e_mails = []
    for person in data:
        if "email" in person:
            e_mails.append(person["email"])