app.py

import gradio as gr
import qrcode
from PIL import Image

def generate_qr(text):
    if not text or text.strip() == "":
        return None

    try:
        qr = qrcode.QRCode(
            version=1,
            box_size=10,
            border=5
        )
        qr.add_data(text)
        qr.make(fit=True)

        img = qr.make_image(fill_color="black", back_color="white")

        # 🔥 IMPORTANT FIX: convert to pure PIL Image
        img = img.convert("RGB")

        return img

    except Exception as e:
        print("ERROR:", e)   # shows in logs
        return None

with gr.Blocks() as demo:
    gr.Markdown("# 🔳 QR Code Generator")

    text_input = gr.Textbox(
        placeholder="Enter text or URL...",
        label="Input Data"
    )

    btn = gr.Button("Generate QR")

    qr_output = gr.Image(type="pil", label="QR Code")

    btn.click(
        fn=generate_qr,
        inputs=text_input,
        outputs=qr_output
    )

demo.launch()