使用python中列表中嵌套字典中存储的值，验证作为用户输入的出生日期
使用python中列表中嵌套字典中存储的值，验证作为用户输入的出生日期
提问于 2018-07-23 20:34:38
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。但即使我输入了正确的出生日期值，它也不会验证该值。下面是我的代码：
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])用户将值设置为-04-02-1995
回答 1
Stack Overflow用户
回答已采纳
发布于 2018-07-23 20:37:53
您需要对嵌套字典的第二级中的键进行测试：
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')当您对已创建的嵌套字典的结构执行print操作时，这一点将变得清晰起来：
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'}}})})页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51478949
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