Simple example converting JSON data and exporting to CSV file.

convert_json_to_csv.py

import json
import csv

json_raw = """
{
    "employees": [{
        "name": "John Smith",
        "salary": 120000
    },{
        "name": "Jane Doe",
        "salary": 125000
    },{
        "name": "Mark Twain",
        "salary": 90000
    }]
}
"""

json_data = json.loads(json_raw)

csv_data = []
csv_header = ["Employee Name", "Annual Salary"]
csv_data.append(csv_header)

for employee in json_data['employees']:
    csv_row = [employee['name'], employee['salary']]
    csv_data.append(csv_row)

with open('output.csv', 'w') as f:
    csv_writer = csv.writer(f)
    csv_writer.writerows(csv_data)