issue_asset.py

from peerplaysbase import operations
from peerplays import PeerPlays
from peerplays.account import Account
from peerplays.asset import Asset
from peerplaysbase import asset_permissions
from getpass import getpass

# The name of the issuer account
issuer = "nathan"
symbol = "BTC"
issue_to = {
    "nathan": 500000,
}

# Instantiate PeerPlays (the master python class)
ppy = PeerPlays()

# Get full account details for issuer
account = Account(issuer, peerplays_instance=ppy)

# Get full asset details
asset = Asset(symbol, peerplays_instance=ppy)

# Unlock the wallet (asks for password)
ppy.wallet.unlock(getpass("Wallet passphrase: "))

# Create the operations that creates the asset
ops = list()

for to_name, amount in issue_to.items():
    # Get receiver account details
    to = Account(to_name, peerplays_instance=ppy)

    # append operation
    ops.append(operations.Asset_issue(**{
        "fee": {"amount": 0, "asset_id": "1.3.0"},  # Will be filled in automatically
        "issuer": account["id"],    # the Issuer account
        "asset_to_issue": {
            "amount": int(amount * 10 ** asset["precision"]),
            "asset_id": asset["id"]
        },
        "issue_to_account": to["id"],
        "extensions": []
    }))

# Finalize (bunle into transaction + serialize + sign) the operation with
# issuer key (needs to be added to the wallet first, e.g. using command line
# tool:
#
#      $ peerplays addkey
#
print(ppy.finalizeOp(ops, account, "active"))