How to clear only last one line in python output console?

Question

I am trying to clear only last few line from output console window. To achieve this I have decided to use create stopwatch and I have achieved to interrupt on keyboard interrupt and on enter key press it creates lap but my code only create lap once and my current code is clearing whole output screen.

clear.py

import os
import msvcrt, time
from datetime import datetime
from threading import Thread

def threaded_function(arg):
    while True:
        input()

lap_count = 0
if __name__ == "__main__":
    # thread = Thread(target = threaded_function)
    # thread.start()
    try:
        while True:
            t = "{}:{}:{}:{}".format(datetime.now().hour, datetime.now().minute, datetime.now().second, datetime.now().microsecond)
            print(t)
            time.sleep(0.2)
            os.system('cls||clear') # I want some way to clear only previous line instead of clearing whole console
            if lap_count == 0:
                if msvcrt.kbhit():
                    if msvcrt.getwche() == '\r': # this creates lap only once when I press "Enter" key
                        lap_count += 1
                        print("lap : {}".format(t))
                        time.sleep(1)
                        continue            
    except KeyboardInterrupt:
        print("lap stop at : {}".format(t))
        print(lap_count)

when I run

%run <path-to-script>/clear.py 

in my ipython shell I am able to create only one lap but it is not staying for permanent.

Answer 1

To clear only a single line from the output :

print ("\033[A                             \033[A")

This will clear the preceding line and will place the cursor onto the beginning of the line. If you strip the trailing newline then it will shift to the previous line as \033[A means put the cursor one line up

Answer 2

The codes shared by Ankush Rathi above this comment are probably correct, except for the use of parenthesis in the print command. I personally recommend doing it like this.

print("This message will remain in the console.")

print("This is the message that will be deleted.", end="\r")

One thing to keep in mind though is that if you run it in IDLE by pressing F5, the shell will still display both messages. However, if you run the program by double clicking, the output console will delete it. This might be the misunderstanding that happened with Ankush Rathi's answer (in a previous post).