diff --git a/nac3standalone/demo/demo.rs b/nac3standalone/demo/demo.rs
index 7f42c89b..c7e44527 100644
--- a/nac3standalone/demo/demo.rs
+++ b/nac3standalone/demo/demo.rs
@@ -74,6 +74,11 @@ pub extern "C" fn __nac3_personality(_state: u32, _exception_object: u32, _conte
     unimplemented!();
 }
 
+#[no_mangle]
+pub extern "C" fn __nac3_raise(_state: u32, _exception_object: u32, _context: u32) -> u32 {
+    unimplemented!();
+}
+
 extern "C" {
     fn run() -> i32;
 }
diff --git a/nac3standalone/demo/src/tuple.py b/nac3standalone/demo/src/tuple.py
new file mode 100644
index 00000000..f71d3f99
--- /dev/null
+++ b/nac3standalone/demo/src/tuple.py
@@ -0,0 +1,29 @@
+@extern
+def output_int32_list(x: list[int32]):
+    ...
+
+@extern
+def output_int32(x: int32):
+    ...
+
+class A:
+    a: int32
+    b: bool
+    def __init__(self, a: int32, b: bool):
+        self.a = a
+        self.b = b
+
+def run() -> int32:
+    data = [0, 1, 2, 3]
+
+    t = [(d, d + d) for d in data]
+    for i in t:
+        tt = (Some(i[1]), i[0])
+        tl = ([i[0], i[1] + i[0]], i[1])
+        output_int32(tt[0].unwrap())
+        output_int32(tt[1])
+        output_int32(tl[0][0])
+        output_int32(tl[0][1])
+        output_int32(tl[1])
+    
+    return 0
\ No newline at end of file