how to filter json array in python

That is the current json array I have. I want get all json objects that type=1

before filter:

[ 
        {
            "type": 1
            "name" : "name 1",
        }, 
        {
            "type": 2
            "name" : "name 2",
        }, 
        {
            "type": 1
            "name" : "name 3"
        }, 
]

after filter:

[ 
        {
            "type": 1
            "name" : "name 1",
        }, 
        {
            "type": 1
            "name" : "name 3"
        }, 
]

please help.

Answer

The following snippet of code does exactly what you want, but BEWARE that your input (as written in the question) is not a valid json string, you can check here: http://jsonlint.com.

import json

input_json = """
[
    {
        "type": "1",
        "name": "name 1"
    },
    {
        "type": "2",
        "name": "name 2"
    },
    {
        "type": "1",
        "name": "name 3"
    }
]"""

# Transform json input to python objects
input_dict = json.loads(input_json)

# Filter python objects with list comprehensions
output_dict = [x for x in input_dict if x['type'] == '1']

# Transform python object back into json
output_json = json.dumps(output_dict)

# Show json
print output_json