Python Read/Write JSON

1. json.dumps

convert dictionary to string in Python

import json

test_dict = {
    'info': [
        {"id": "11111"}, 
        {
            1: [['iPhone', 6300], 
                ['Bike', 800], 
                ['shirt', 300]]
                }
        ]
    }

print(test_dict)
print(type(test_dict))

#dumps dict --> str
json_str = json.dumps(test_dict)
print(json_str)
print(type(json_str))

2. json.loads

convert string to dictionary in Python

new_dict = json.loads(json_str)
print(new_dict)
print(type(new_dict))

3. json.dump

write the dict into a JSON file

with open("test.json","w") as f:
    json.dump(new_dict,f)
    print("file write successfully...")

4. json.load

read the JSON file

with open("test.json",'r') as load_f:
    load_dict = json.load(load_f)
    print("file read successfully...")
print(load_dict)

5. Complete Code

import json

test_dict = {
    'info': [
        {"id": "11111"}, 
        {
            1: [['iPhone', 6300], 
                ['Bike', 800], 
                ['shirt', 300]]
                }
        ]
    }
print(test_dict)
print(type(test_dict))

#dumps dict --> str
json_str = json.dumps(test_dict)
print(json_str)
print(type(json_str))

new_dict = json.loads(json_str)
print(new_dict)
print(type(new_dict))

with open("test.json","w") as f:
    json.dump(new_dict,f)
    print("file write successfully...")

with open("test.json",'r') as load_f:
    load_dict = json.load(load_f)
    print("file read successfully...")
print(load_dict)

Reference