Resize images using ImageMagick and supbprocess

resize_images_django.py

# dependencies ImageMagick
# reduce files > 1024MB
import os
from pathlib import Path
import subprocess
import time
for c in CadImages.objects.filter(somefilter='lslslsl'):
    ext = c.my_image_field.path.split('/')[-1].split('.')[-1]
    if ext.lower() == 'pdf':
        # exclude PDF
        continue

    if Path(c.my_image_field.path).exists():
        # check size
        stats = os.stat(c.my_image_field.path)
        if stats.st_size >= 1024000:
            print(c.my_image_field.url)
            print('Size file WAS', (stats.st_size // 1024000), 'GB')
            comando = f'convert {c.my_image_field.path} -resize 30% {c.my_image_field.path}'
            subprocess.call(comando,
                           shell=True)
            time.sleep(0.5)
            stats = os.stat(c.my_image_field.path)
            print('Size file is', (stats.st_size // 1024), ' M bytes')