从字典python中删除u键

Question

How to exclude the key 'u' from below,

{u'{"auth":{"user_id":"2"},"data":{"collection":"master-services"}}': [u'']}

I need to get my dictionary like below,

{"auth":{"user_id":"2"},"data":{"collection":"master-services"}}

Answer 1

It looks like you have a dictionary where the key(s) is JSON data. Try parsing it with a JSON parser.

>>> json.loads(list(data)[0])
{'auth': {'user_id': '2'}, 'data': {'collection': 'master-services'}}

If you have many such keys, you can iterate over data (or, data.keys() ), like this:

>>> new_data = [json.loads(d) for d in data]

This gives you a list of dictionaries.

Answer 2

u stands for Unicode Text. It is used for creating Unicode strings. It is not a character that's stored in the dictionary.

You just need the key of the dictionary entry. Because there is only one key, you can do this:

my_dict = {u'{"auth":{"user_id":"2"},"data":{"collection":"master-services"}}': [u'']}
my_key = next(iter(my_dict))

my_key will hold the value {"auth":{"user_id":"2"},"data":{"collection":"master-services"}}