使用python读取json字符串的特定部分

Question

I am currently working on a programme within the django environment which operates off a json api provided by a third party. There is an object within that API which I want however the string of information it provides is too much for me.

The data I want is the created_at tag from the twitter api using tweepy. This created_at contains data in the following format:

"created_at": "Mon Aug 27 17:21:03 +0000 2012"

This is all fine however this will return the date AND time whereas I simply want the the time part of the above example ie 17:21:03.

Is there any way I can just take this part of the created_at response string and store it in a separate variable?

Answer 1

You can use the dateutil module

from dateutil import parser

created_at = "Mon Aug 27 17:21:03 +0000 2012"
created_at = parser.parse(created_at)
print created_at.time()

Output:

17:21:03

Answer 2

Try below code.

my_datetime = response_from_twitter['created_at']
my_time = my_datetime.split(' ')[3]

# my_time will now contain time part.

Answer 3

您可以将字符串拆分成一个列表并采用第4个元素：

time = source['created_at'].split(' ')[3]

Answer 4

What about a regular expression with re.search() :

>>> import re
>>> d = {"created_at": "Mon Aug 27 17:21:03 +0000 2012"}
>>> re.search('\d{2}:\d{2}:\d{2}', d['created_at']).group(0)
'17:21:03'