Design pattern to add callbacks

#cbk.py
registryList = []

def registry(f):
    """To append in registryList"""
    def callbackRegistration():
        registryList.append(f())
        return f
    callbackRegistration()


def predicate1(e):
    if e[0] == 'data':
        return True

def action1(e, eventLoop):
    print('do whatever')

@registry
def registerCallback():
    """Must be the provider of multiple callbacks(if any)"""
    return (predicate1, action1)

---

#cbk-registration.py
from  cbk import registryList


if __name__ == '__main__':
    genEvent = ('data', 1.2)
    for pred, action  in registryList:
        if pred(genEvent) == True:
            action(genEvent, None)

---

In cbk.py, predicate1 & action1 are scattered.

Is there a design pattern to add multiple callbacks (pred,action)?