changed upload button

app.py

@@ -14,13 +14,16 @@ def func(file, number_of_pages, secret):
     else:
         client.predict(file, number_of_pages)
 
+def upload_file(file):
+    return file.name
+
 read_key = os.environ.get("HF_TOKEN", None)
 
 if __name__ == "__main__":
     client = Client.duplicate("Nauryzbay/deckify_private", hf_token=read_key)
 
     with gr.Blocks() as demo:
-        file = gr.File(label="PDF File")
+        file_output = gr.File()
         upload_button = gr.UploadButton("Click to Upload a PDF File", file_types=["file"], file_count="single")
         upload_button.upload(upload_file, upload_button, file_output)
 
@@ -28,7 +31,7 @@ if __name__ == "__main__":
         secret = gr.Textbox(label="Password", type="password")
         output = gr.Textbox(label="Output")
         greet_btn = gr.Button("Generate slides")
-        greet_btn.click(fn=func, inputs=[file, number_of_pages, secret], outputs=output, api_name="greet")
+        greet_btn.click(fn=func, inputs=[upload_button, number_of_pages, secret], outputs=output, api_name="greet")
     
     demo.queue(max_size=5)
     demo.launch()