parse_nuzzel.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import json

blob = "[Nuzzel JSON Blob]"
obj = json.loads(blob)

twitter_user_ids = []
# Thanks for calling all these awesome people friends, Nuzzel
for friend in obj['results']['friends']:
    # In theory, each Nuzzel user can have multiple accounts linked
    # In practice, none of my friends had more than one
    for account in friend['external_users']:
        # Just in case. All of my results were Twitter here though
        if account['typeName'] == 'Twitter':
            # There's their Twitter ID!
            twitter_user_ids.append(account['externalUserid'])

print twitter_user_ids