To get balances from any wallet:

coldkey balance

import bittensor as bt
sub = bt.subtensor( network = 'finney' )
ck='<coldkey>'
balance = sub.get_balance(address = ck)

hotkey balances

You can get the balance for all the hotkeys associated with a cold key. This will print an array of all hotkeys and their current balance.

import bittensor as bt
sub = bt.subtensor( network = 'finney' )
ck='<coldkey>'
delegated = sub.get_stake_info_for_coldkey(ck)
print( delegated)

The following code will return the sum of all the hotkey stake:

import bittensor as bt
sub = bt.subtensor( network = 'finney' )
ck='<coldkey>'

#this gets all hotkeys - both validators&miners as well as delegated/staked
total_st = sub.get_total_stake_for_coldkey(ck)