Extracting metadata from a png file in Python

 A very simple program using PIL to extract the png text embedded as metadata by comfyUI 

import PIL.Image
import argparse

def extract_text(filename):
    png = PIL.Image.open(filename)
    return png.text

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description='png metadata infor')
    parser.add_argument('filename', help='png File to check')
    args = parser.parse_args()
    text = extract_text(args.filename)
    print(text)