Question

I have a file containing a list of event spaced with some time. Here is an example:

0, Hello World
0.5, Say Hi
2, Say Bye

I would like to be able to replay this sequence of events. The first column is the delta between the two consecutive events ( the first starts immendiately, the second happens 0.5s later, the third 2s later, … )

How can i do that on Windows . Is there anything that can ensure that I am very accurate on the timing ? The idea is to be as close as what you would have listneing some music , you don’t want your audio event to happen close to the right time but just on time .

Answer 1

This can be done easily by using the sleep function from the time module. The exact code should work like this:

import time

# Change data.txt to the name of your file
data_file = open("data.txt", "r")

# Get rid of blank lines (often the last line of the file)
vals = [i for i in data_file.read().split('\n') if i]

data_file.close()

for i in vals:
    i = i.split(',')
    i[1] = i[1][1:]
    time.sleep(float(i[0]))

    print i[1]

This is an imperfect algorithm, but it should give you an idea of how this can be done. We read the file, split it to a newline delimited list, then go through each comma delimited couplet sleeping for the number of seconds specified, and printing the specified string.