From 57029f6efa8cdb9b135128c9664eceaf46b922d8 Mon Sep 17 00:00:00 2001
From: Shahar Naveh <50263213+ShaharNaveh@users.noreply.github.com>
Date: Mon, 28 Jul 2025 17:55:13 +0200
Subject: [PATCH] Derive `Default` for GroupByState (#6043)

---
 vm/src/stdlib/itertools.rs | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/vm/src/stdlib/itertools.rs b/vm/src/stdlib/itertools.rs
index 8bc4ef797..7653ac65a 100644
--- a/vm/src/stdlib/itertools.rs
+++ b/vm/src/stdlib/itertools.rs
@@ -666,6 +666,7 @@ mod decl {
         }
     }
 
+    #[derive(Default)]
     struct GroupByState {
         current_value: Option<PyObjectRef>,
         current_key: Option<PyObjectRef>,
@@ -729,12 +730,7 @@ mod decl {
             Self {
                 iterable,
                 key_func: key.flatten(),
-                state: PyMutex::new(GroupByState {
-                    current_key: None,
-                    current_value: None,
-                    next_group: false,
-                    grouper: None,
-                }),
+                state: PyMutex::new(GroupByState::default()),
             }
             .into_ref_with_type(vm, cls)
             .map(Into::into)