From 7f99c178c7186fffa824d9d38ba150120712ac53 Mon Sep 17 00:00:00 2001
From: Henry Schreiner <henryschreineriii@gmail.com>
Date: Sat, 4 Apr 2026 00:06:11 -0500
Subject: [PATCH] perf: add __slots__ to Marker

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
---
 src/packaging/markers.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/packaging/markers.py b/src/packaging/markers.py
index e1007aea8..9019f1c54 100644
--- a/src/packaging/markers.py
+++ b/src/packaging/markers.py
@@ -324,6 +324,8 @@ class Marker:
     :raises InvalidMarker: If ``marker`` cannot be parsed.
     """
 
+    __slots__ = ("_markers",)
+
     def __init__(self, marker: str) -> None:
         # Note: We create a Marker object without calling this constructor in
         #       packaging.requirements.Requirement. If any additional logic is