从文本文件中在冒号之后或冒号之前获取值 [英] getting the value from text file after the colon or before the colon in python

问题描述

我只需要最后一个数字25，所以我可以将其更改为int().我有这个文本文件:

I only need the last number 25 so i can change it to int(). I have this text file:

{
  "members": [
    {"name": "John", "location": "QC", "age": 25},
    {"name": "Jesse", "location": "PQ", "age": 24},
}

然后返回年龄的值

到目前为止，我一直在尝试这种方法，因此很困扰……我使用哪种函数来解析它?那就是你所说的吗?我是编程和python的新手.

This what I have tried so far, so I am so stuck... What kind of function do I use to parse it? Is that what you call it? I'm new to programming and in python.

import json
import pprint

my_data = json.loads(open("team.json.txt").read())

print 'members whose location is in PQ'
member_in_pq = [member for member in my_data['members'] \
    if member['location'] == 'PQ']
pprint.pprint(member_in_pq)

通过我尝试这段代码的方式，它给出了一个错误:

By the way I tried this code but it gives an error:

result = my_data.split(':')[-1]

推荐答案

我不确定您要问怎么做，但会尝试猜测.

I'm not sure what you're asking how to do, but will make an attempt to guess.

首先，您显示的文本不是有效的JSON，需要将其更改为以下内容:

First of all, the text you show isn't valid JSON and would need to be changed to something like this:

{                                                  
  "members": [                                     
    {"name": "John", "location": "QC", "age": 25}, 
    {"name": "Jesse", "location": "PQ", "age": 24}
  ]
}                                                  

这里可以打印出位置PQ中每个成员的所有数据:

Here's something that would print out all the data for each member in location PQ:

import json
import pprint

my_data = json.loads(open("team.json.txt").read())

members_in_pq = [member for member in my_data['members']
                    if member['location'] == 'PQ']

print 'members whose location is in PQ'
for member in members_in_pq:
    print '  name: {name}, location: {location}, age: {age}'.format(**member)

输出:

members whose location is in PQ
  name: Jesse, location: PQ, age: 24

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