#using pycoin from https://github.com/NeuCoin/pycoin

from pycoin.tx.script import tools
from pycoin.encoding import a2b_hashed_base58, hash160
from pycoin.serialize import b2h
from pycoin.tx.pay_to import ScriptPayToScript

def make_cold(mint, spend):
  script_coldminting = 'OP_DUP OP_HASH160 OP_MINT OP_IF %s OP_ELSE %s OP_ENDIF OP_EQUALVERIFY OP_CHECKSIG'
  mint_b58 = a2b_hashed_base58(mint)
  spend_b58 = a2b_hashed_base58(spend)
  compiled = tools.compile(script_coldminting % (b2h(mint_b58[1:]), b2h(spend_b58[1:])))
  redeemscript = b2h(compiled)
  pts = ScriptPayToScript(hash160(compiled))
  addr = pts.info('NEU')['address']
  return addr, redeemscript

coldminting_addr, redeemscript = make_cold('NWNwLaXhZbcJom6u97smZEKB38z8uACFQg', 'NbNKWKapLvHtk4GWWXQuccQrbSxpxmBbvP')
#coldminting_addr is nNy7UyPnJp3B4QUB1a7pAGP1tCtJze3btZ
#redeemscript is 76a9c0631472caf23efb189034f583de35e0dbe5c26fe62a2d6714a985aa03d0e15d75b57fed8b863eb9f11f3fd5406888ac