first commit

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "[python]": {
+        "editor.defaultFormatter": "ms-python.black-formatter"
+    },
+    "python.formatting.provider": "none"
+}

app.py

@@ -0,0 +1,4 @@
+import streamlit as st
+
+x = st.slider("Select a value")
+st.write(x, "squared is", x * x)