how to access gmail use python?

Question

I wanna access gmail use python and oauth2.0,so I download the oauth2.py from "http://google-mail-oauth2-tools.googlecode.com/svn/trunk/python/oauth2.py". And this is my demo:

import oauth2
import imaplib
import email
from oauth2client.client import OAuth2WebServerFlow
from launchpadlib.credentials import access_token_page

email = '[email protected]'
client_id = 'client_id'
client_secret = 'client_secret'
# Check https://developers.google.com/drive/scopes for all available scopes
OAUTH_SCOPE = 'https://mail.google.com/'
# Redirect URI for installed apps
REDIRECT_URI = 'urn:ietf:wg:oauth:2.0:oob'
flow = OAuth2WebServerFlow(client_id, client_secret, OAUTH_SCOPE, REDIRECT_URI)
authorize_url = flow.step1_get_authorize_url()
print 'Go to the following link in your browser: ' + authorize_url
authorization_code = raw_input("Please input the code:").strip()
response = oauth2.AuthorizeTokens(client_id, client_secret, authorization_code)
access_token = response['access_token']
auth_string = oauth2.GenerateOAuth2String(email,access_token,base64_encode=True)
print auth_string
imap_conn = imaplib.IMAP4_SSL('imap.gmail.com')
imap_conn.debug = 4
imap_conn.authenticate('XOAUTH2',lambda x:auth_string)
imap_conn.select('INBOX')

But the demo has some bugs,I don't know how to debug it.The information from console:

  16:58.52 > KOMN1 AUTHENTICATE XOAUTH2
  16:58.79 < + 
  16:58.79 write literal size 204
  16:59.27 < + eyJzdGF0dXMiOiI0MDAiLCJzY2hlbWVzIjoiQmVhcmVyIiwic2NvcGUiOiJodHRwczovL21haWwuZ29vZ2xlLmNvbS8ifQ==
  16:59.27 write literal size 204
  16:59.27 < KOMN1 NO Invalid SASL argument. d10if1169757igr.56
  16:59.27 NO response: Invalid SASL argument. d10if1169757igr.56
Traceback (most recent call last):
  File "/home/karl/workspace/Gmail/download_gmail/download_gmail_api.py", line 33, in <module>
    imap_conn.authenticate('XOAUTH2',lambda x:auth_string)
  File "/usr/lib/python2.7/imaplib.py", line 351, in authenticate
    raise self.error(dat[-1])
imaplib.error: Invalid SASL argument. d10if1169757igr.56

I need help.

developers.google.com/api-client-library/python/guide/aaa_oauth I will add this page to the one @goncalopp linked. Its calendar but it has a lot of explanation that might help you understand. — Linda Lawton - DaImTo
– Linda Lawton - DaImTo, Commented Feb 14, 2014 at 11:42
I do not think that you need oauth to access the emails with imap. — User
– User, Commented Feb 14, 2014 at 12:29

Breedly · Accepted Answer · 2015-02-17 05:02:35Z

1

The auth_string should not be base64encoded. I believe the IMAP4.authenticate encodes it for you. It worked for me anyways.

For example: auth_string = 'user=%s\1auth=Bearer %s\1\1' % (user, access_token)

answered Feb 17, 2015 at 5:02

Breedly

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