Question

我正在尝试验证用户的出生日期，并将其与字典数据库中存储的值进行比较。但是，即使我输入了正确的出生日期值，也无法验证该值。这是我的代码：

from collections import defaultdict



accountDetails = [
    {"FirtsName": "JOHN", "LastName": "DENIS","date of Birth": "01-06-1992", "Account Number": "432524352345234", "Account Balance": "50000"},
    {"FirtsName": "AKASH", "LastName": "MAHAJAN", "date of Birth": "04-02-1995","Account Number": "432524352345234", "Account Balance": "50000"},
    {"FirtsName": "AMAN", "LastName": "RANA","date of Birth": "11-04-1996", "Account Number": "432524352345234", "Account Balance": "50000"},
    {"FirtsName": "ANKUR", "LastName": "JAIN","date of Birth": "21-05-1990", "Account Number": "432524352345234", "Account Balance": "50000"},
]


d = defaultdict(lambda: defaultdict(dict))
for item in accountDetails:
    d[item['FirtsName']][item['LastName']][item['date of Birth']] = item

# get valid first name
while True:
    first_name_input = input('Enter First Name:\n').upper()
    if first_name_input in d:
        break
    else:
        print('Enter valid First Name')

# get valid last name
while True:
    last_name_input = input('Enter Last Name:\n').upper()
    if last_name_input in d[first_name_input]:
        break
    else:
        print('Enter valid Last Name')
                         # get valid last name
while True:
    dob_input = input('Enter dob:\n')
    if  dob_input in d[first_name_input]:
        break
    else:
        print('Enter valid dob')


print(d[first_name_input][last_name_input])

用户已将值设置为-04-02-1995

Answer 1

您需要对嵌套字典的 second 级别中的键进行测试：

while True:
    dob_input = input('Enter dob:\n')
    if dob_input in d[first_name_input][last_name_input]:
        break
    else:
        print('Enter valid dob')

当您print创建的嵌套字典的结构时，这一点变得很清楚：

print(d)

defaultdict(<function __main__.<lambda>>,
            {'AKASH': defaultdict(dict,
                         {'MAHAJAN': {'04-02-1995': {'Account Balance': '50000',
                            'Account Number': '432524352345234',
                            'FirtsName': 'AKASH',
                            'LastName': 'MAHAJAN',
                            'date of Birth': '04-02-1995'}}}),
             ...
             'JOHN': defaultdict(dict,
                         {'DENIS': {'01-06-1992': {'Account Balance': '50000',
                            'Account Number': '432524352345234',
                            'FirtsName': 'JOHN',
                            'LastName': 'DENIS',
                            'date of Birth': '01-06-1992'}}})})

验证生日作为用户输入的日期，并将其值存储在python列表中的嵌套字典中

1 个答案: