YoApi docs - https://medium.com/@YoAppStatus/yo-developers-api-e7f2f0ec5c3c
You will need a YoApi API key to use this library, obtain one here - http://yoapi.justyo.co/
Usage is simple:
#!/usr/bin/env python
from yoapi import yo
yo = yo.api(API_KEY)
yo.yoall()
yo.yo('BRADC')
print yo.subscribers_count()