rdio-simple python fails with unicode strings

[simao]

Hello,

I am trying to call the api with a string containing unicde, but I always get an error, doesn't matter if I encode it with encode or not.

The following code can be used to reproduce the issue:

# -*- coding: utf-8 -*-

from __future__ import unicode_literals

import sys,os.path
import json
import time
import traceback

from rdio import Rdio

try:
    from urllib.error import HTTPError
except ImportError:
    from urllib2 import HTTPError

rdio = Rdio((RDIO_CONSUMER_KEY, RDIO_CONSUMER_SECRET), AUTH_TOKEN)

name = "Röyksopp"

search = rdio.call('search', {'query': name, 'types': 'Album'})

print search

This throws:

Traceback (most recent call last):
  File "issue.py", line 26, in <module>
    search = rdio.call('search', {'query': name, 'types': 'Album'})
  File "/home/simao/spotify-export/rdio.py", line 77, in call
    return json.loads(self.__signed_post('http://api.rdio.com/1/', params))
  File "/home/simao/spotify-export/rdio.py", line 45, in __signed_post
    req = Request(url, urlencode(params).encode('utf-8'),
  File "/usr/lib/python2.7/urllib.py", line 1332, in urlencode
    v = quote_plus(str(v))
UnicodeEncodeError: 'ascii' codec can't encode character u'\xf6' in position 1: ordinal not in range(128)

[dasevilla]

I can confirm this issue and I'm looking into a fix.