Update app.py

app.py

@@ -585,9 +585,9 @@ def create_gradio_interface():
                
                   downloader.download_task = downloader.executor.submit( #changed async execution method
                        downloader._download_single_doi, 
-                       doi_input, 
-                          lambda a,b,c: update_progress(a,f"{b}<br>{c}")  , #callback function, format output and send html info, removed lambda from executor calls
-                           cancel_event  # Add cancellation event.
+                         doi_input, 
+                           lambda a,b,c: update_progress(a,f"{b}<br>{c}")  , #callback function, format output and send html info, removed lambda from executor calls
+                            cancel_event  # Add cancellation event.
                       )
                  
                   return  None, "","", None
@@ -599,7 +599,7 @@ def create_gradio_interface():
                        lambda a,b,c: update_progress(a,f"{b}<br>{c}") ,#callback function
                          cancel_event #Add cancellation event.
                    )
-               
+                 
                  return  None, "","", None
 
             else:
@@ -659,18 +659,17 @@ def create_gradio_interface():
                          
                         single_file= gr.File(label="Downloaded Single PDF")
                     
-            
             with gr.Row():
                  stop_button = gr.Button(value="Stop Downloads")
+                 stop_button.click(lambda: downloader.cancel_download(), outputs=None)  # added function in object downloader
           
             submit_button.click(
-              download_papers,
+                 download_papers,
                  inputs=[bib_file, doi_input, dois_input],
                 outputs=[output_file, downloaded_dois_textbox, failed_dois_textbox,logs, single_file ] # the new output should be a tuple and we output logs too for debugging.
-           ) 
-           stop_button.click(lambda: downloader.cancel_download(), outputs=None)  # added function in object downloader
+            )
+
 
-    
     interface.title="🔬 Academic Paper Batch Downloader"
     interface.description="Upload a BibTeX file or enter DOIs to download PDFs. We'll attempt to fetch PDFs from multiple sources like Sci-Hub, Libgen, Google Scholar and Crossref. You can use any of the three inputs at any moment."