Generate qrcode with optional logo

generate-qrcode.py

#!/usr/bin/env python3

import qrcode
import typer
from typing_extensions import Annotated, Optional
from rich import print

app = typer.Typer()

default_data = "https://www.youtube.com/watch?v=dQw4w9WgXcQ"


@app.command()
def gen_qr(
    data: Annotated[
        Optional[str],
        typer.Argument(
            help="data to encode, example: 'WIFI:S:mon-reseau;T:WPA2;P:mon-code;;'"
        ),
    ] = None,
    output_filename: Annotated[
        str, typer.Option("--output", help="output filename")
    ] = "qr.png",
    background_image: Annotated[
        str, typer.Option("--background", help="background image as logo")
    ] = None,
):
    """
    Generate a qrcode using given data

    Example data: 'WIFI:S:infowifi;T:WPA2;P:lewifiouvretes7chakras;;'
    """
    QRcode = qrcode.QRCode(error_correction=qrcode.constants.ERROR_CORRECT_H)

    if data is None:
        QRcode.add_data(default_data)
    else:
        QRcode.add_data(data)

    QRcode.make()
    # taking color name from user
    QRcolor = "black"

    # adding color to QR code
    from qrcode.image.styledpil import StyledPilImage
    from qrcode.image.styles.moduledrawers.pil import RoundedModuleDrawer
    from qrcode.image.styles.colormasks import RadialGradiantColorMask

    QRimg = QRcode.make_image(
        fill_color=QRcolor,
        back_color="white",
        image_factory=StyledPilImage,
        module_drawer=RoundedModuleDrawer(),
        color_mask=RadialGradiantColorMask(
            edge_color=(0, 0, 0), center_color=(65, 137, 249)
        ),
        embeded_image_path=background_image,
    )

    # save the QR code generated
    QRimg.save(output_filename)
    if data is None:
        print(
            "[bold red]It[/bold red] [bold pink]is[/bold pink] [bold blue]what it[/bold blue] [bold pink]is[/bold pink]"
        )
    print(f"qrcode generated, saved to {output_filename}")


if __name__ == "__main__":
    app()

Setup

pip install "typer[all]" "qrcode[pil]"

Example: