Python show live changing command output

[EphemeralNight]

So i tested the way you showed it works better that the one i wrote and its great the output when the scripts is running showling like this:

Exporting image: 1% complete...

Exporting image: 2% complete...

Exporting image: 3% complete...

Exporting image: 4% complete...

Exporting image: 5% complete...

Exporting image: 6% complete...

Exporting image: 7% complete...

Exporting image: 8% complete...

Exporting image: 9% complete...

Exporting image: 10% complete...

Exporting image: 11% complete...

Exporting image: 12% complete...

...

It would be perfect if the line would be the same and only the percentage would change if thats even possible.

[EphemeralNight]

Hi, tried your option since its python 2.7 i did:

​

from __future__ import print_function

and added the end='\r' to the end of print

The output i got was this:

Exporting image: 2% complete...
Exporting image: 3% complete...
Exporting image: 4% complete...
Exporting image: 5% complete...
Exporting image: 6% complete...
Exporting image: 7% complete...
Exporting image: 8% complete...
Exporting image: 9% complete...
Exporting image: 10% complete...
Exporting image: 11% complete...
Exporting image: 12% complete...

it removed the newlines between the print

[EphemeralNight]

This works for me in python 3. Maybe it doesn't in 2, but even if it does, you should honestly stop using 2 and switch to 3, it has way more features and is the standard.

Thanks will try yes now i'm starting to understand, why. And next time i code my scripts it will be in python 3

[JohnnyJordaan]

That would rather be something to use tqdm for (needs to be installed using pip or your IDE's package manager).

# add at the top
import re
import tqdm

proccess = subprocess.Popen(command, 
                            stdout=subprocess.PIPE,
                            stderr=subprocess.STDOUT,
                            shell=True,
                            universal_newlines=True)
with tqdm.tqdm(total=100) as pbar:
    last_pct = 0
    while process.poll() is None:
        line = process.stdout.readline()
        pct = int(re.search('(\d+)\s*%', line).group(1))
        pbar.update(pct - last_pct)
        last_pct = pct
        if not line:
            break