generate smallest png base64 string

generate_smallest_png_base64.py

import base64
from io import BytesIO

from PIL import Image


def smallest_png_base64():
    with Image.new('RGBA', (1, 1), (0, 0, 0, 0)) as img:
        with BytesIO() as buffer:
            img.save(buffer, format='PNG')
            data = buffer.getvalue()
            png_base64 = base64.b64encode(data).decode('ascii')
            return 'data:image/png;base64,{0}'.format(png_base64)

if __name__ == '__main__':
    base64_png = smallest_png_base64()
    print('base64_png:', base64_png)
    print('len(base64_png):', len(base64_png))