Running a timed sequence of events in python

run_sequence_example.py

#!/usr/bin/env python

import time

def main():
    print("Start program")
    # Initialize variables
    sequence = [
        { 't': 1.0, 'msg': "Yakayak 1"},
        { 't': 1.8, 'msg': "Yakayak 2"},
        { 't': 2.6, 'msg': "Yaka 1", 'more': "YAKA 1"},
        { 't': 3.0, 'msg': "Yaka 2", 'more': "YAKA 1"},
        { 't': 3.4, 'msg': "Yaka 3", 'more': "YAKA 1"},
        { 't': 3.8, 'msg': "Yaka 4", 'more': "YAKA 1"},
        { 't': 5.0, 'msg': "The queen diva!"}
    ]
    step = 0
    starttime = time.time()
    #
    # Run until sequence was completed
    while step < len(sequence):
        # Check the time
        elapsed = time.time() - starttime
        nextStepTime = sequence[step]['t']
        # If the time is past the time of the step, execute this step and go to the next step
        if elapsed > nextStepTime:
            # Execute the step
            print(sequence[step]['msg'])
            # Only execute the extra code if the 'more' key is present
            if 'more' in sequence[step]:
                print("---", sequence[step]['more'], "---")
            # Increase the step counter
            step += 1  

if __name__ == '__main__':
    main()

Make sure you have at least python 2.7