write csv with utf8 bom.py

import binascii
file = open('douyin_signature.csv', 'wb')
bom = binascii.unhexlify(''.join("EF BB BF".split()))
file.write(bom)
file.write('unique_id,signature'.encode())

def get_signature(unique_id):
    import requests
    response = requests.get(f'https://www.iesdouyin.com/web/api/v2/user/info/?unique_id={unique_id}').json()
    return response['user_info']['signature']

for item in items:
  signature=get_signature(item)
  file.write(f'{item},"{signature}"\n'.encode())

file.close()