Test download button

app.py

@@ -1,4 +1,5 @@
 from typing import Dict
+from pathlib import Path
 
 import gradio as gr
 
@@ -14,23 +15,21 @@ title = "This is title."
 description = "This is description."
 article = "This is article."
 
-def filter_records(records, gender):
-    return records[records["gender"] == gender]
-
-demo = gr.Interface(
-    filter_records,
-    [
-        gr.Dataframe(
-            headers=["name", "age", "gender"],
-            datatype=["str", "number", "str"],
-            row_count=5,
-            col_count=(3, "fixed"),
-        ),
-        gr.Dropdown(["M", "F", "O"]),
-    ],
-    "dataframe",
-    description="Enter gender as 'M', 'F', or 'O' for other.",
-)
+def upload_file(filepath):
+    name = Path(filepath).name
+    return [gr.UploadButton(visible=False), gr.DownloadButton(label=f"Download {name}", value=filepath, visible=True)]
+
+def download_file():
+    return [gr.UploadButton(visible=True), gr.DownloadButton(visible=False)]
+
+with gr.Blocks() as demo:
+    gr.Markdown("First upload a file and and then you'll be able download it (but only once!)")
+    with gr.Row():
+        u = gr.UploadButton("Upload a file", file_count="single")
+        d = gr.DownloadButton("Download the file", visible=False)
+
+    u.upload(upload_file, u, [u, d])
+    d.click(download_file, None, [u, d])
 
 demo.launch(debug=False,
            share=True)