Create app.py

app.py

@@ -0,0 +1,8 @@
+import gradio as gr
+
+with gr.Blocks() as demo:
+    d = gr.Dropdown(["Choice 1", "Choice 2", "Other"])
+    t = gr.Textbox(visible=False)
+    d.change(lambda x: gr.Dropdown.update(visible=x=="Other"), d, t)
+    
+demo.launch()