如何在python中过滤json数组
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how to filter json array in python
提问by Majid Zandi
That is the current json array I have. I want get all json objects that type=1
那是我当前拥有的 json 数组。我想获取 type=1 的所有 json 对象
before filter:
过滤前：
[
{
"type": 1
"name" : "name 1",
},
{
"type": 2
"name" : "name 2",
},
{
"type": 1
"name" : "name 3"
},
]
after filter:
过滤后：
[
{
"type": 1
"name" : "name 1",
},
{
"type": 1
"name" : "name 3"
},
]
please help.
请帮忙。
采纳答案by Joaquin Sargiotto
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.
以下代码片段完全符合您的要求，但请注意您的输入（如问题中所写）不是有效的 json 字符串，您可以在此处查看：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
