Signing A Request

import oauth2 as oauth
import time

# Set the API endpoint 
url = "http://example.com/photos"

# Set the base oauth_* parameters along with any other parameters required
# for the API call.
params = {
    'oauth_version': "1.0",
    'oauth_nonce': oauth.generate_nonce(),
    'oauth_timestamp': str(int(time.time())),
    'user': 'joestump',
    'photoid': 555555555555
}

# Set up instances of our Token and Consumer. The Consumer.key and 
# Consumer.secret are given to you by the API provider. The Token.key and
# Token.secret is given to you after a three-legged authentication.
token = oauth.Token(key="tok-test-key", secret="tok-test-secret")
consumer = oauth.Consumer(key="con-test-key", secret="con-test-secret")

# Set our token/key parameters
params['oauth_token'] = token.key
params['oauth_consumer_key'] = consumer.key

# Create our request. Change method, etc. accordingly.
req = oauth.Request(method="GET", url=url, parameters=params)

# Sign the request.
signature_method = oauth.SignatureMethod_HMAC_SHA1()
req.sign_request(signature_method, consumer, token)