Great tool, thank you. up voted and followed you.

And for 
>If you are delegating SP, currently the only option to un-delegate is with the blockchain API. If you do not know how to use this, then you likely will not be able to get this SP back unless/until a third-party tool is developed that allows you to un-delegate.

There is a easy way to do it with `official STEEM library for Python`
####  Just delegate 0 vesting_shares to delegatee!
For example:
```
from steem import Steem
steem = Steem()
steem.delegate_vesting_shares('user1', '0 VESTS', chinadaily)
```