OAuth2 Python Example

Here is an incomplete sample of Python code using the rauth library, provided by /u/intortus:

auth = rauth.service.OAuth2Service(
    name="reddit",
    consumer_key=CLIENT_ID,
    consumer_secret=CLIENT_SECRET,
    access_token_url="https://ssl.reddit.com/api/v1/access_token",
    authorize_url="https://ssl.reddit.com/api/v1/authorize")

# first, make the user follow this link:
authorize_url = auth.get_authorize_url(
    response_type="code",
    scope="identity",
    state="...", # some unguessable value to prevent CSRF
    redirect_uri=CLIENT_REDIRECT_URI)

# when user is redirected back after authorizing:
code = request.args["code"]
response = auth.get_access_token(
    auth=(auth.consumer_key, auth.consumer_secret),
    data=dict(
        grant_type="authorization_code",
        code=code,
        redirect_uri=CLIENT_REDIRECT_URI))
access_token = response.content["access_token"]