Adds python-version file

.python-version

@@ -0,0 +1 @@
+3.11.1

app.py

@@ -0,0 +1,17 @@
+from shiny import App, render, ui
+
+app_ui = ui.page_fluid(
+    ui.h2("Hello Shiny!"),
+    ui.input_slider("n", "N", 0, 100, 20),
+    ui.output_text_verbatim("txt"),
+)
+
+
+def server(input, output, session):
+    @output
+    @render.text
+    def txt():
+        return f"n*2 is {input.n() * 2}"
+
+
+app = App(app_ui, server)