count_up_every_5_seconds.ipynb

Kernel: Python 3 (system-wide)

import threading
from IPython.display import display, HTML
import ipywidgets as widgets
import time

def thread_func(out):
    i = 0
    while True:
        out.clear_output()
        out.append_stdout('{}\n'.format(i))
        
        i += 1
        time.sleep(1)
out = widgets.Output()


thread = threading.Thread(
    target=thread_func,
    args=(out,))
thread.start()
display(out)

print('hi')

hi