我正在尝试使用来自 python 的两个用户输入来解析 JSON URL 文件中的信息答案

【问题标题】：I am trying to parse information from a JSON URL file using two user inputs from python我正在尝试使用来自 python 的两个用户输入来解析 JSON URL 文件中的信息
【发布时间】：2021-03-06 17:04:13
【问题描述】：

这是通过询问用户一个输入而成功运行的代码，在这种情况下是状态

import requests
import simplejson as json

response = requests.get("https://api.covidtracking.com/v1/states/ca/daily.json")

json_test = response.json()

print("Enter the state for which the COVID data should be retrieved (e.g. TX): ")
user_state = input()


count = 0
for i in json_test:
    i = count
    count = count + 1
    state = (json_test[i]['state'])
    dates = (json_test[i]['date'])
    

    if state == user_state:
            
        death = (json_test[i]['death'])
        print("State: " + str(state))
        print("Date: " + str(dates))
        print("Death(s)" + str(death))
        print("===============")

输出将类似于：

Date: 20201112
Death(s)18108
===============
State: CA
Date: 20201111
Death(s)18070
===============
State: CA
Date: 20201110
Death(s)18001
===============
State: CA
Date: 20201109
Death(s)17977
===============

但我正在尝试实现用户在命令行上输入美国州和日期的选项，例如：

Enter the state for which the COVID data should be retrieved (e.g. TX): CA
Enter the date for which the COVID data should be retrieved (e.g. 20201219): 20210219

我试过的代码是：

import requests
import simplejson as json

response = requests.get("https://api.covidtracking.com/v1/states/ca/daily.json")

json_test = response.json()

print("Enter the state for which the COVID data should be retrieved (e.g. TX): ")
user_state = input()
print("Enter the date for which the COVID data should be retrieved (e.g. 20201219): ")
user_date = input()

count = 0
for i in json_test:
    i = count
    count = count + 1
    state = (json_test[i]['state'])
    dates = (json_test[i]['date'])
    

    if state == user_state and dates == user_date:
            
        death = (json_test[i]['death'])
        print("State: " + str(state))
        print("Date: " + str(dates))
        print("Death(s)" + str(death))
        print("===============")

但是，我的输出没有结果，但也没有错误。我现在知道为什么它不起作用了

【问题讨论】：

我看到 JSON 中的日期是整数，例如 20210305，而不是字符串。您可以尝试将用户输入转换为 int 或处理日期。

标签： python json for-loop parsing

【解决方案1】：

此处从 url 收到的日期值的数据类型为 int，您需要将其转换为 string 以进行比较。此代码将完美运行：

import requests
import simplejson as json

response = requests.get("https://api.covidtracking.com/v1/states/ca/daily.json")

json_test = response.json()


user_state = input("Enter the state for which the COVID data should be retrieved (e.g. TX): ")

user_date = input("Enter the date for which the COVID data should be retrieved (e.g. 20201219): ")

count = 0
for i in json_test:
    i = count
    count = count + 1
    state = (json_test[i]['state'])
    dates = (json_test[i]['date'])


    if((state == user_state)and(str(dates) == user_date)):

        death = (json_test[i]['death'])
        print("State: " + str(state))
        print("Date: " + str(dates))
        print("Death(s): " + str(death))
        print("===============")

输入

Enter the state for which the COVID data should be retrieved (e.g. TX): CA
Enter the date for which the COVID data should be retrieved (e.g. 20201219): 20210305

输出

State: CA
Date: 20210305
Death(s): 53448
===============

【讨论】：