From 3f97bfe96f43daa5e640f73763019446ee240b21 Mon Sep 17 00:00:00 2001
From: Lennart Purucker <contact@lennart-purucker.com>
Date: Wed, 22 Jan 2025 10:36:14 +0100
Subject: [PATCH] fix: make fingerprint feature deterministic

---
 src/tabpfn/model/preprocessing.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tabpfn/model/preprocessing.py b/src/tabpfn/model/preprocessing.py
index 9575b5f2..ceecc8dd 100644
--- a/src/tabpfn/model/preprocessing.py
+++ b/src/tabpfn/model/preprocessing.py
@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import hashlib
 import warnings
 from abc import abstractmethod
 from collections import UserList
@@ -474,8 +475,7 @@ def _transform(self, X: np.ndarray, *, is_test: bool = False) -> np.ndarray:
 
 
 def float_hash_arr(arr: np.ndarray) -> float:
-    b = arr.tobytes()
-    _hash = hash(b)
+    _hash = int(hashlib.sha256(arr.tobytes()).hexdigest(), 16)
     return _hash % _CONSTANT / _CONSTANT