From 0204e1a6c4cefe965e1724a35b17db1787fd63d3 Mon Sep 17 00:00:00 2001
From: Fabien Aulaire <306648+faulaire@users.noreply.github.com>
Date: Fri, 24 Jun 2022 16:47:13 +0200
Subject: [PATCH] Timedelta deterministic hashing (#9213)

---
 dask/base.py            | 1 +
 dask/tests/test_base.py | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/dask/base.py b/dask/base.py
index 60b0f711ef5..91a8dbab215 100644
--- a/dask/base.py
+++ b/dask/base.py
@@ -949,6 +949,7 @@ def tokenize(*args, **kwargs):
         complex,
         type(Ellipsis),
         datetime.date,
+        datetime.timedelta,
     ),
     identity,
 )
diff --git a/dask/tests/test_base.py b/dask/tests/test_base.py
index 709c745e933..69bf154359e 100644
--- a/dask/tests/test_base.py
+++ b/dask/tests/test_base.py
@@ -426,6 +426,11 @@ def test_tokenize_ordered_dict():
     assert tokenize(a) != tokenize(c)
 
 
+def test_tokenize_timedelta():
+    assert tokenize(datetime.timedelta(days=1)) == tokenize(datetime.timedelta(days=1))
+    assert tokenize(datetime.timedelta(days=1)) != tokenize(datetime.timedelta(days=2))
+
+
 @pytest.mark.parametrize("enum_type", [Enum, IntEnum, IntFlag, Flag])
 def test_tokenize_enum(enum_type):
     class Color(enum_type):