use tempfile

app.py

@@ -2,6 +2,7 @@ import gradio as gr
 import json
 import PyPDF2
 import markdown
+import tempfile
 
 def convert_to_jsonl(file):
     content = ""
@@ -22,12 +23,17 @@ def convert_to_jsonl(file):
             json_obj = {"id": i, "text": line.strip()}
             jsonl_output += json.dumps(json_obj) + "\n"
     
-    return jsonl_output
+    # Save the JSONL output to a temporary file named tmp.jsonl
+    temp_file = tempfile.NamedTemporaryFile(delete=False, suffix=".jsonl")
+    temp_file.write(jsonl_output.encode('utf-8'))
+    temp_file.close()
+    
+    return temp_file.name
 
 iface = gr.Interface(
     fn=convert_to_jsonl,
     inputs=gr.File(label="Upload .txt, .pdf, or .md file"),
-    outputs=gr.File(label="Download JSONL file", file_name="tmp.jsonl"),
+    outputs=gr.File(label="Download JSONL file"),
     title="Raw Text to Indexed JSONL Converter",
     description="Upload a .txt, .pdf, or .md file to convert it to an indexed JSONL file for LLM training."
 )