Replacing individual characters in a print statement

Question

I know the title is quite vague, but I have no idea how to sum what I want to do.

An example is a loading screen, I want to do something like this:

Loading assets - 10%

and then remove the output from the terminal and print

Loading textures - 20%

Every time I try something like this I get

Loading assets - 10%
Loading textures - 20%

How can I do this?

Can I suggest you to adopt some kind of library for this, like [tqdm](https://github.com/tqdm/tqdm), instead of writing your own stuff? — Alberto Re, May 07 '18 at 08:26
For which kind of operating system and terminal do you want this to work? Windows default `cmd` has quite different requirements for this than must UNIX terminals. — Martijn, May 07 '18 at 09:10

score 0 · Answer 1 · answered May 07 '18 at 08:25

0

Use os package and clear screen and rewrite every update time.

import os
os.system("clear")
print "your text"

answered May 07 '18 at 08:25

n1md7

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That would work but I have other things on the screen that I don't want to clear, are there any other solutions? – Basic and Default May 07 '18 at 08:26
probably you need this. https://stackoverflow.com/questions/36520120/overwriting-clearing-previous-console-line – n1md7 May 07 '18 at 08:29

score 0 · Answer 2 · answered May 07 '18 at 08:28

0

Assuming that you could be using python 3.3+ the print statement can help you with this:

print(*objects, sep=' ', end='\n', file=sys.stdout, flush=False)

So when printing use:

print('Mytext', flush=True)

answered May 07 '18 at 08:28

zipa

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i have question , can this script run on python 2-x? – Skiller Dz May 07 '18 at 08:31
@SkillerDz No, thus the assumption:) – zipa May 07 '18 at 08:32

score 0 · Answer 3 · answered May 07 '18 at 08:28

try this script ; i tested it and it work fine , i added time.sleep for you see the effects

import os
from platform import system
import time


if system() == 'Windows':
   os.system('cls')
if system() == 'Linux':
   os.system('cls')

print("Loading Images - 10%")

time.sleep(2)

if system() == 'Windows':
   os.system('cls')
if system() == 'Linux':
   os.system('cls')

print("Loading Texture - 20%")

score 0 · Answer 4 · answered May 07 '18 at 08:31

Clear and simple solution for Python 3

import sys, time
for x in (10, 20, 30):
    print("Loading assets - {}%".format(x), end="\r")
    time.sleep(2)

For good measure, you may want to add a sys.stdout.flush() after the print. This works on UNIXes at least…

Replacing individual characters in a print statement

4 Answers4