from nbmultitask import ThreadWithLogAndControls
from time import sleep

# the target function will be passed a function called `thread_print`
def fn(thread_print):
    i = 1
    # be careful with loops... (in order for the stop button to work)
    while i <= 5:
        thread_print('%i...' % i)
        sleep(1.5)
        i+=1

task = ThreadWithLogAndControls(target=fn, name="do some stuff")
task.control_panel()