do something every second python code example

Example 1: how to run a function in interval in python

# this makes program sleep in intervals
from time import time, sleep
while True:
    sleep(1 - time() % 1) # run every 1 second... you can change that
	# thing to run

Example 2: every second value python

import numpy as np
values=np.arange(0,10)
print(values[::2])