Spotify API create playlist – error parsing JSON

Solution

@app.route('/playlist', methods=['GET', 'POST'])
def create_playlist():
    resp = spotify.authorized_response()
    session['oauth_token'] = (resp['access_token'], '')


    username = USER
    return spotify.post('https://api.spotify.com/v1/users/' + username + '/playlists',
                                   data={'name': 'playlist_name', 'description': 'something'}, format='json')