Update app.py

app.py

@@ -3,12 +3,16 @@ import pdfminer
 from pdfminer.high_level import extract_text
 
 def read_pdf(file):
+    if file is None:
+        return "No file uploaded"
     text = extract_text(file.name)
     return text
 
 iface = gr.Interface(
-    read_pdf,
-    gr.inputs.File(),
-    gr.outputs.Textbox()
+    fn=read_pdf,
+    inputs=gr.File(label="Upload PDF file"),
+    outputs=gr.Textbox(label="Extracted Text")
 )
-iface.launch()
+
+if __name__ == "__main__":
+    iface.launch()