Time sleep not working in loop after printing a line

Question

import time
while True:
    time.sleep(1)
    print(".", end=" ")

I just want to make kind of loading screen by make dots appear after one second and I was expecting this-

.{wait}.{wait}.{wait}.{wait}

But I didn't got any output but after closing program by ctrl + c I got the output like this-


. . . . . . . . . . . . Traceback (most recent call last):
  File "c:/Users/Piyush/Desktop/Python/dotdotdotload.py", line 12, in <module>
    time.sleep(1)
KeyboardInterrupt```

Try using `print(".", end=" ", flush=True)` – martineau Dec 17 '19 at 10:15 — martineau, Dec 17 '19 at 10:15

score 1 · Accepted Answer · answered Dec 17 '19 at 10:15

1

You need to flush the output and it will display:

Python-3.x: https://repl.it/repls/DarksalmonFussyBooleanalgebra

import time

while True:
    time.sleep(1)
    print(".", end=" ", flush=True)

Python-2.7: https://repl.it/repls/CuteTenseRoutes

import sys
import time

while True:
    time.sleep(1)
    print ". ",
    sys.stdout.flush()

answered Dec 17 '19 at 10:15

Alan Kavanagh

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thanks for the effort you made to make a whole lot of code :) – Piyush Feb 12 '20 at 13:48

Time sleep not working in loop after printing a line

1 Answers1