TeleExport.py

import json
import csv
from csv2vcard import csv2vcard

csv_columns = ['first_name','last_name','phone_number']

with open('result.json', encoding='utf-8') as contactsFile:
    with open('contacts.csv','a',encoding="utf-8-sig", newline='') as csvfile:
        with open('contacts.vcf', 'a', encoding="utf-8-sig", newline='') as vcffile:
            writer = csv.DictWriter(csvfile, fieldnames=csv_columns)
            writer.writeheader()
            data = json.load(contactsFile)
            for p in data['contacts']['list']:
                f_name = str(p['first_name']).encode('utf-8').decode('utf-8')
                l_name = str(p['last_name']).encode('utf-8').decode('utf-8')
                p_num = str(p['phone_number']).encode('utf-8').decode('utf-8')
                if p_num[:4] == '0098':
                    p_num = str(p_num.replace(p_num[:4], '0'))
                writer.writerow({'first_name': f_name, 'last_name': l_name, 'phone_number':p_num})
                vcffile.write('BEGIN:VCARD\nVERSION:3.0\n')
                vcffile.write('N:{}; {};;;\n'.format(l_name, f_name))
                vcffile.write('FN: {} {}\n'.format(f_name, l_name))
                vcffile.write('TEL: {}\n'.format(p_num))
                vcffile.write('END:VCARD\n')