pip install kraken-wsclient-py

from kraken_wsclient_py import kraken_wsclient_py as client

def my_handler(message):
    # Here you can do stuff with the messages
    print(message)

my_client = client.WssClient()
my_client.subscribe_public(
    subscription={
        'name': 'trade'
    },
    pair=['XBT/USD', 'XRP/USD'],
    callback=my_handler
)

my_client.start()