[Python] how to delete or clear printed text in python

I'm learning python in Jupyterlab. Currently, I tried to find a way to clear the printed text in Jupyterlab but I haven't gotten any luck.

I searched online to find a few solutions. However, they won't clear the printed text in my console even though others have reported position results.

I tried the (1). '\b' character (2)os.system('cls') (3)sys.stdout.write

all of them failed to clear the printed text.

print('Hello',end='')
print(5*'\b')
print('how are you?',end='')


output: Hell how are you?

print('Hello',end='')
for i in range(len('Hello')):
print('\b',end='')

print('how are you?',end='')


output: Hellhow are you?

print('Hey')
import os
if os.name=='nt':
os.system('cls')
else:
os.system('clear')
print('how are you?')


output: Hey how are you?

import sys, time

def delete_last_line():
sys.stdout.write('\x1b[1A')
sys.stdout.write('\x1b[2K')

print("hello")
time.sleep(2)
delete_last_line()
print("how are you")


output: hello how are you

I wonder if it's because the system or modules have updated so that the methods no longer work the same way or my computer or Jupyterlab has bugs causing the failure.

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