Xtykutl

Currently, I am writing a program to forward all the Gmail messages of users to a Gmail address
I took the help from:Link
I created all the storage, credentials file etc
but when I try to run the program it's giving an error:

Traceback (most recent call last):

  File "hh.py", line 40, in <module>

    thadari()

  File "hh.py", line 30, in thadari

    result = GMAIL.users().settings().forwardingAddresses().create(userId='me', body=address).execute()

  File "/home/vishalthadari/Documents/Seperation 1/virutalenv/python 3/env/lib/python3.6/site-packages/googleapiclient/_helpers.py", line 130, in positional_wrapper

    return wrapped(*args, **kwargs)

  File "/home/vishalthadari/Documents/Seperation 1/virutalenv/python 3/env/lib/python3.6/site-packages/googleapiclient/http.py", line 842, in execute

    raise HttpError(resp, content, uri=self.uri)

googleapiclient.errors.HttpError: <HttpError 403 when requesting https://www.googleapis.com/gmail/v1/users/me/settings/forwardingAddresses?alt=json returned "Insufficient Permission">

i already gave the sending mail permission to it but I don't know why it's giving the error.there's no scope for forward message as I read here:link
Or do I need to buy google gsuite for this? which is defined here:Link
in gmail.settings.sharing

I know that whole wall of code is not reusable but as I am new to Google API's so I think their's small minor bugs in my code:

from apiclient import discovery

from apiclient import errors

from httplib2 import Http

from oauth2client import file, client, tools

import base64

from bs4 import BeautifulSoup

import re

import time

import dateutil.parser as parser

from datetime import datetime

import datetime

import csv







def thadari():

    SCOPES = 'https://www.googleapis.com/auth/gmail.send'

    store = file.Storage('storage.json')

    creds = store.get()

    if not creds or creds.invalid:

        flow = client.flow_from_clientsecrets('client_secret.json', SCOPES)

        creds = tools.run_flow(flow, store)

    GMAIL = discovery.build('gmail', 'v1', http=creds.authorize(Http()))



    user_id = 'me'

    label_id_one = 'INBOX'





    address = {'forwardingEmail': 'girlsdontloveme75@gmail.com'}

    result = GMAIL.users().settings().forwardingAddresses().create(userId='me', body=address).execute()

    if result.get('verificationStatus') == 'accepted':

        body = {

        'emailAddress': result.get('forwardingEmail'),

        'enabled': True,

        'disposition': 'trash'

    }   





if __name__ == '__main__':

    thadari()

Is this the right way to do it? or there's a better way to do this please help me

Thanks in advance