A quick-and-dirty script for getting all my album and playlist info out of Rdio before my subscription is up. This script was only tested on Python 3.5.0.

rdio-export.py

import requests
from requests.auth import HTTPBasicAuth

CLIENT_ID = ''
CLIENT_SECRET = ''
TOKEN_URL = 'https://services.rdio.com/oauth2/token'
API_URL = 'https://services.rdio.com/api/1/'


# GET TOKEN
# =========
api_token = requests.post(TOKEN_URL,
    auth=HTTPBasicAuth(CLIENT_ID, CLIENT_SECRET),
    data={
        'grant_type': 'client_credentials'
    }
).json().get('access_token')


# GET USER INFO
# =============
user = requests.post(API_URL,
    data={
        'method': 'findUser',
        'vanityName': 'epochblue',
        'extras': 'albumCount'
    },
    headers={
        'Authorization': 'Bearer {}'.format(api_token)
    }
).json().get('result', {})

album_count = user.get('albumCount', 0)
user_key = user.get('key')


# GET ALBUMS IN COLLECTION
# ========================
start = 0
COUNT = 100
with open('albums.txt', 'w') as albums_out:
    while start < album_count:
        albums = requests.post(API_URL,
            data={
                'method': 'getAlbumsInCollection',
                'count': COUNT,
                'start': start,
                'sort': 'playCount',
                'user': user_key
            },
            headers={'Authorization': 'Bearer {}'.format(api_token)}
        ).json().get('result', [])

        for album in albums:
            artist = album.get('artist')
            name = album.get('name')
            albums_out.write('{} - {}\n'.format(artist, name))

        start += COUNT


# GET PLAYLISTS AND TRACKS THEREIN
# ================================
start = 0
playlists = requests.post(API_URL,
    data={
        'method': 'getUserPlaylists',
        'count': COUNT,
        'start': start,
        'sort': 'name',
        'user': user_key,
        'extras': 'tracks'
    },
    headers={'Authorization': 'Bearer {}'.format(api_token)}
).json().get('result', [])

with open('playlists.txt', 'w') as playlists_out:
    for playlist in playlists:
        name = playlist.get('name')
        tracks = playlist.get('tracks')

        playlists_out.write(name + '\n')
        playlists_out.write('-' * len(name) + '\n')

        for track in tracks:
            playlists_out.write('{} - {} ({})\n'.format(track.get('artist'), track.get('name'), track.get('album')))
        
        playlists_out.write('\n\n')