Create app.py

app.py

@@ -0,0 +1,32 @@
+import streamlit as st
+import base64
+import os
+
+# Read existing app.py
+with open('app.py', 'r') as f:
+    app_code = f.read()
+
+# Streamlit UI
+st.title("Self-Modifying Streamlit App")
+
+# Textbox for username
+username = st.text_input("Enter your username:", "anonymous")
+
+# File Upload
+uploaded_file = st.file_uploader("Choose a file")
+if uploaded_file is not None:
+    file_content = uploaded_file.read()
+
+    # Convert file to base64
+    b64 = base64.b64encode(file_content).decode()
+    st.markdown(f"File successfully uploaded. Here is the base64 link:")
+    st.markdown(f"`{b64}`")
+
+    # Modify app.py
+    new_code = f"# Modified by {username}\n"
+    modified_app_code = app_code + "\n" + new_code
+    with open('app.py', 'w') as f:
+        f.write(modified_app_code)
+
+    # Refresh app
+    os.system("streamlit rerun")