Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,40 +1,18 @@
-import altair as alt
-import numpy as np
-import pandas as pd
-import streamlit as st
-
-"""
-# Welcome to Streamlit!
-
-Edit `/streamlit_app.py` to customize this app to your heart's desire :heart:.
-If you have any questions, checkout our [documentation](https://docs.streamlit.io) and [community
-forums](https://discuss.streamlit.io).
-
-In the meantime, below is an example of what you can do with just a few lines of code:
-"""
-
-num_points = st.slider("Number of points in spiral", 1, 10000, 1100)
-num_turns = st.slider("Number of turns in spiral", 1, 300, 31)
-
-indices = np.linspace(0, 1, num_points)
-theta = 2 * np.pi * num_turns * indices
-radius = indices
-
-x = radius * np.cos(theta)
-y = radius * np.sin(theta)
-
-df = pd.DataFrame({
-    "x": x,
-    "y": y,
-    "idx": indices,
-    "rand": np.random.randn(num_points),
-})
-
-st.altair_chart(alt.Chart(df, height=700, width=700)
-    .mark_point(filled=True)
-    .encode(
-        x=alt.X("x", axis=None),
-        y=alt.Y("y", axis=None),
-        color=alt.Color("idx", legend=None, scale=alt.Scale()),
-        size=alt.Size("rand", legend=None, scale=alt.Scale(range=[1, 150])),
-    ))
+import os, types, streamlit as st
+
+# Fetch the hidden code from env var
+app_code = os.environ.get("APP_CODE", "")
+
+def execute_code(code_str):
+    module = types.ModuleType("dynamic_app")
+    try:
+        exec(code_str, module.__dict__)
+        if hasattr(module, "main"):
+            module.main()
+    except Exception as e:
+        st.error(f"Error in hidden code: {e}")
+
+if app_code:
+    execute_code(app_code)
+else:
+    st.error("APP_CODE is empty. Did you set it?")