Quick untested bottle example

bottleapp.py

import soundcloud

from bottle import get, post, redirect, request

def soundcloud_client():
    return soundcloud.Client(
        client_id='YOUR_CLIENT_ID',
        client_secret='YOUR_CLIENT_SECRET',
        redirect_uri='http://localhost:3000/soundcloud/connected'
    )

@post('/login')
def login():
    client = soundcloud_client()
    return redirect(client.authorize_url())

@get('/soundcloud/connected')
def callback():
    code = request.query.code
    client = soundcloud_client()
    access_token = client.exchange_token(code)
    ...