From 34be09180e54f314984af7d95102bd82ce826b56 Mon Sep 17 00:00:00 2001
From: Fabien Aulaire <fabien.aulaire@gmail.com>
Date: Fri, 24 Jun 2022 14:01:40 +0200
Subject: [PATCH] Timedelta deterministic hashing

---
 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 2e3e88aea12..f697759a272 100644
--- a/dask/base.py
+++ b/dask/base.py
@@ -948,6 +948,7 @@ 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 8852d4cd4fc..9c5ef8108a7 100644
--- a/dask/tests/test_base.py
+++ b/dask/tests/test_base.py
@@ -425,6 +425,11 @@ 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))
+
+
 ADataClass = dataclasses.make_dataclass("ADataClass", [("a", int)])
 BDataClass = dataclasses.make_dataclass("BDataClass", [("a", Union[int, float])])  # type: ignore