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import logging

import sys

import threading

import psutil

logging.basicConfig(stream=sys.stderr, level=logging.INFO)

if __name__ == "__main__":

p = psutil.Process()

logging.info("We start a sub thread first")

def worker():

i = 0

while True:

i += 1

new_thread = threading.Thread(

target=worker,

)

new_thread.daemon = True

new_thread.start()

logging.info("first call with no args = %s", p.cpu_percent())

use_interval = 2

logging.info(

"call with a interval %s = %s", use_interval, p.cpu_percent(use_interval)

)

logging.info(

"call with interval=None again <non-blocking (percentage since last call)> = %s",

p.cpu_percent(interval=None),

)