Update app.py

app.py

@@ -4,7 +4,7 @@ from PIL import Image
 import gradio as gr
 import tempfile
 import numpy as np
-import shutil  # For cleaning up temporary files
+import os
 
 
 # Function to generate a QR code
@@ -19,11 +19,11 @@ def generate_qr(data):
     qr.make(fit=True)
     img = qr.make_image(fill="black", back_color="white")
 
-    # Save to a temporary file
+    # Save QR code image to a temporary file
     temp_file = tempfile.NamedTemporaryFile(delete=False, suffix=".png")
     img.save(temp_file.name, format="PNG")
-    temp_file.close()  # Ensure file is written to disk
-    return temp_file.name, img  # Return the file path and the PIL image
+    temp_file.close()  # Ensure the file is saved
+    return temp_file.name  # Return the file path
 
 
 # Function to read a QR code
@@ -46,6 +46,7 @@ def create_gradio_interface():
     with gr.Blocks() as demo:
         gr.Markdown("## QR Code Tool: Generate and Decode with Ease")
 
+        # Tab for generating QR codes
         with gr.Tab("Generate QR Code"):
             with gr.Row():
                 data_input = gr.Textbox(placeholder="Enter text or URL here...", label="Data to Encode")
@@ -56,7 +57,10 @@ def create_gradio_interface():
                 qr_file = gr.File(label="Download QR Code")
 
             def generate_qr_interface(data):
-                qr_file_path, qr_image_pil = generate_qr(data)
+                if not data.strip():
+                    raise ValueError("Input text cannot be empty!")
+                qr_file_path = generate_qr(data)
+                qr_image_pil = Image.open(qr_file_path)
                 return qr_image_pil, qr_file_path
 
             generate_button.click(
@@ -65,6 +69,7 @@ def create_gradio_interface():
                 outputs=[qr_image, qr_file],
             )
 
+        # Tab for reading QR codes
         with gr.Tab("Read QR Code"):
             with gr.Row():
                 image_input = gr.Image(type="pil", label="Upload QR Code Image")
@@ -73,6 +78,8 @@ def create_gradio_interface():
             decoded_data = gr.Textbox(label="Decoded Data")
 
             def read_qr_interface(img):
+                if img is None:
+                    raise ValueError("Please upload a valid QR code image!")
                 return read_qr(img)
 
             decode_button.click(