Authenticate with the Evernote Cloud API using OAuth and Python

oauth_example.py

# Python OAuth example

import evernote.edam.userstore.constants as UserStoreConstants
import evernote.edam.type.ttypes as Types
from evernote.api.client import EvernoteClient

##
# Helper function to turn query string parameters into a 
# Python dictionary
##
def parse_query_string(authorize_url):
    uargs = authorize_url.split('?')
    vals = {}
    if len(uargs) == 1:
        raise Exception('Invalid Authorization URL')
    for pair in uargs[1].split('&'):
        key, value = pair.split('=', 1)
        vals[key] = value
    return vals

##
# Create an instance of EvernoteClient using your API
# key (consumer key and consumer secret)
##
client = EvernoteClient(
            consumer_key = 'your-key',
            consumer_secret = 'your-secret',
            sandbox = True
        )

##
# Provide the URL where the Evernote Cloud API should 
# redirect the user after the request token has been
# generated. In this example, localhost is used; note
# that in this example, we're copying the URLs manually
# and that, in production, this URL will need to 
# automatically parse the response and send the user
# to the next step in the flow.
##
request_token = client.get_request_token('http://localhost')

##
# Prompt the user to open the request URL in their browser
##
print "Paste this URL in your browser and login"
print
print '\t'+client.get_authorize_url(request_token)
print
print '-------'

##
# Have the user paste the resulting URL so we can pull it
# apart
##
print "Paste the URL after login here:"
authurl = raw_input()

##
# Parse the URL to get the OAuth verifier
##
vals = parse_query_string(authurl)

##
# Use the OAuth verifier and the values from request_token
# to built the request for our authentication token, then
# ask for it.
##
auth_token = client.get_access_token(
            request_token['oauth_token'],
            request_token['oauth_token_secret'],
            vals['oauth_verifier']
        )

##
# Create a new EvernoteClient instance with our auth
# token.
##
client = EvernoteClient(token=auth_token)

##
# Test the auth token...
##
userStore = client.get_user_store()
user = userStore.getUser()

##
# If our username prints, it worked.
##
print user.username