How tired I am of Google way how get API tokens

import requests
import json
import oauth2client
import httplib2
import urllib.parse
import urllib.request
import urllib.error
from oauth2client import client
from oauth2client import tools
from apiclient import discovery

SCOPES = 'https://www.googleapis.com/auth/drive'
APPLICATION_NAME = 'G_Drive_auth'
CLIENT_SECRET_FILE = 'client_secret.json'
credential_path = ...\.credentials\drive-python-quickstart.json'
credential_file = ...\.credentials\drive-python-quickstart.json'

try:
    import argparse
    flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()
except ImportError:
    flags = None

def credentials_renew():
    store = oauth2client.file.Storage(credential_path)
    credentials = store.get()
    if not credentials or credentials.invalid:
        flow = client.flow_from_clientsecrets(CLIENT_SECRET_FILE, SCOPES)
        flow.user_agent = APPLICATION_NAME
        if flags:
            credentials = tools.run_flow(flow, store, flags)
        else: # Needed only for compatibility with Python 2.6
            credentials = tools.run(flow, store)
        print('Storing credentials to ' + credential_path)
    return credentials

def refreshAccessToken(self):
    """Refresh current access token with refresh token
    Return: access token
    """
    params = {"grant_type": "refresh_token",
              "refresh_token": self.refreshToken}
    for i in [self.CLIENT_ID, self.CLIENT_SECRET]:
        params[i] = self.conf[i]
    data = urllib.parse.urlencode(params).encode("utf-8")
    request = urllib.request.Request(self.conf[self.TOKEN_ENDPOINT])
    request.add_header("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
    f = urllib.request.urlopen(request, data)
    root = json.loads(f.read().decode("utf-8"))
    self.accessToken = root[self.ACCESS_TOKEN]
    self.__saveCacheTokens()
    return self.accessToken

cred = credentials_renew()
http = cred.authorize(httplib2.Http())
service = discovery.build('drive', 'v2', http=http)
results = service.files().list(maxResults=10).execute()
print(results)

with open(credential_file) as data_file:
    data = json.load(data_file)
    access_token = data['access_token']
print(access_token)

token = access_token
url = "https://www.googleapis.com/drive/v2/files?key="
key = ""
header = {'Authorization':'Bearer ' + token}
list_files = requests.get(url, headers=header)
answer = list_files.json()
print(answer)
ask_token = requests.get('https://www.googleapis.com/oauth2/v1/tokeninfo?access_token='+token)
token_expires = ask_token.json()
print(token_expires['expires_in'])