Python Snippets

Intervals.py

import threading

def do_every (interval, worker_func, iterations = 0):
  if iterations != 1:
    threading.Timer (
      interval,
      do_every, [interval, worker_func, 0 if iterations == 0 else iterations-1]
    ).start ()

  worker_func ()

def print_hw ():
  print ("hello world")

def print_so ():
  print ("stackoverflow")


# call print_so every second, 5 times total
do_every (1, print_so, 5)

# call print_hw two times per second, forever
#do_every (0.5, print_hw)