Switch to Python Flask app for testing

app.py

@@ -0,0 +1,12 @@
+from flask import Flask
+import os
+
+app = Flask(__name__)
+
+@app.route('/')
+def hello():
+    return "Hello from Python Flask app deployed via your platform!"
+
+if __name__ == '__main__':
+    port = int(os.environ.get('PORT', 8080))
+    app.run(host='0.0.0.0', port=port)