Untitled

def generate_custom_code128(product_code, dpi=203, paper_size=(1, 2.125)):
    basethickness = 8
    baseheight = 0.6
    barcode = code128.image(product_code, thickness=basethickness, height=int(baseheight * dpi))
    paper_width = int(paper_size[0] * dpi)
    paper_height = int(paper_size[1] * dpi)
    image = Image.new('1', (paper_width, paper_height), 1)
    barcode = barcode.rotate(90, expand=True)
    barcode_width, barcode_height = barcode.size

    while (barcode_height > paper_height):
        basethickness = basethickness - 1
        barcode = code128.image(product_code, thickness=basethickness, height=int(baseheight * dpi))
        barcode = barcode.rotate(90, expand=True)
        barcode_width, barcode_height = barcode.size

    x_pos = int((paper_width - barcode_width) / 2) - 40
    y_pos = int((paper_height - barcode_height) / 2)
    image.paste(barcode, (x_pos, y_pos))
    draw = ImageDraw.Draw(image)
    font = ImageFont.truetype("arial.ttf", 50)
    text_width, text_height = draw.textsize(product_code, font=font)
    text_x = int((paper_width - text_width) / 2)
    text_y = y_pos - text_height - 60
    rotated_text = Image.new('1', (text_width, text_height), 1)
    text_draw = ImageDraw.Draw(rotated_text)
    text_draw.text((0, 0), product_code, font=font, fill=0)
    rotated_text = rotated_text.rotate(90, expand=True)
    image.paste(rotated_text, (text_x, text_y))
    output = io.BytesIO()
    image.save(output, format="PNG")
    output.seek(0)
    return output