Output to the same line overwriting previous

Question

How to print the output on the same line by overwriting the previously printed Timing(countdown) value?

As shown below, after each second, the timing value is printed on the next row.

13:35:01  13:35:00  13:34:59  13:34:58  13:34:57  13:34:56 

I want the timing value to be printed on the same row clearing the previous one.

Answer 1

You can use the "return"-character \r to return to the beginning of the line. In Python 2.x, you'll have to use sys.stdout.write and sys.stdout.flush instead of print.

import time, sys while True:     sys.stdout.write("\r" + time.ctime())     sys.stdout.flush()     time.sleep(1) 

In Python 3.3, you can use the print function, with end and flush parameters:

    print(time.ctime(), end="\r", flush=True) 

Note, however, that this way you can only replace the last line on the screen. If you want to have a "live" clock in a more complex console-only UI, you should check out curses.

import time, curses scr = curses.initscr() scr.addstr(0, 0, "Current Time:") scr.addstr(2, 0, "Hello World!") while True:     scr.addstr(0, 20, time.ctime())     scr.refresh()     time.sleep(1) curses.endwin() 

Answer 2

This will work like a champ:

print("This text is about to vanish - from first line", end='') print("\rSame line output by Thirumalai") 

output:

Same line output by Thirumalai from first line