Automatically verifying gdrive app login in python program - google-drive-api

Question

I want to automatically verify my credentials without going to the link and pasting the verification code every time I run this program.
might storing credentials will work but I don't know how to store it and reuse it..
my code is given below
#!/usr/bin/python
import httplib2
import pprint
from apiclient.discovery import build
from apiclient.http import MediaFileUpload
from oauth2client.client import OAuth2WebServerFlow
from oauth2client.file import Storage
# Copy your credentials from the console
CLIENT_ID = 'my_id' #i have client id but dont wanna share
CLIENT_SECRET = 'my_secret' #i have client secret but dont wanna share
# Check https://developers.google.com/drive/scopes for all available scopes
OAUTH_SCOPE = 'https://www.googleapis.com/auth/drive'
# Redirect URI for installed apps
REDIRECT_URI = 'urn:ietf:wg:oauth:2.0:oob'
# Path to the file to upload
FILENAME = 'hello.txt'
# Run through the OAuth flow and retrieve credentials
flow = OAuth2WebServerFlow(CLIENT_ID, CLIENT_SECRET, OAUTH_SCOPE,
redirect_uri=REDIRECT_URI)
authorize_url = flow.step1_get_authorize_url()
print 'Go to the following link in your browser: ' + authorize_url
code = raw_input('Enter verification code: ').strip()
credentials = flow.step2_exchange(code)
# Create an httplib2.Http object and authorize it with our credentials
http = httplib2.Http()
http = credentials.authorize(http)
drive_service = build('drive', 'v2', http=http)
# Insert a file
media_body = MediaFileUpload(FILENAME, mimetype='text/plain', resumable=True)
body = {
'title': 'My document',
'description': 'A test document',
'mimeType': 'text/plain'
}
file = drive_service.files().insert(body=body, media_body=media_body).execute()
pprint.pprint(file)
any help is appreciated !

Answer 1

Here you can find the documentation on OAuth with python: https://developers.google.com/api-client-library/python/guide/aaa_oauth (edited url)
basically you will have to use self.redirect(authorize_url) to make that step automatically and then in the second step you will use flow.step2_exchange(self.request.params)
In the documentation will find a better explanation of the process.