From abd606bc592fc4f6f5aee34c7cfee62416398496 Mon Sep 17 00:00:00 2001
From: aDragon0707 <mlj13593685688@gmail.com>
Date: Mon, 7 Sep 2026 19:28:22 +0800
Subject: [PATCH 1/2] fix precisedelta dropping sign of negative timedeltas
 (fix #379)

---
 src/humanize/time.py | 20 +++++++++++++++-----
 tests/test_time.py   | 11 +++++++++++
 2 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/src/humanize/time.py b/src/humanize/time.py
index 975cc03c..4b8d32e3 100644
--- a/src/humanize/time.py
+++ b/src/humanize/time.py
@@ -5,6 +5,8 @@
 
 from __future__ import annotations
 
+import datetime
+
 __lazy_modules__ = {"humanize.i18n", "humanize.number"}
 
 from enum import Enum
@@ -546,6 +548,13 @@ def precisedelta(
 
     ```
     """
+    if isinstance(value, datetime.timedelta):
+        negative = value < datetime.timedelta(0)
+    elif isinstance(value, (int, float)):
+        negative = value < 0
+    else:
+        negative = False
+
     date, delta = _date_and_delta(value, precise=True)
     if date is None:
         return str(value)
@@ -673,12 +682,13 @@ def precisedelta(
             break
 
     if len(texts) == 1:
-        return texts[0]
-
-    head = ", ".join(texts[:-1])
-    tail = texts[-1]
+        result = texts[0]
+    else:
+        head = ", ".join(texts[:-1])
+        tail = texts[-1]
+        result = _("%s and %s") % (head, tail)
 
-    return _("%s and %s") % (head, tail)
+    return f"-{result}" if negative else result
 
 
 def _rounding_by_fmt(format: str, value: float) -> float | int:
diff --git a/tests/test_time.py b/tests/test_time.py
index c3743bbc..fef2e0a7 100644
--- a/tests/test_time.py
+++ b/tests/test_time.py
@@ -837,6 +837,17 @@ def test_precisedelta_suppress_units(
 def test_precisedelta_bogus_call() -> None:
     assert humanize.precisedelta(None) == "None"
 
+
+def test_precisedelta_negative() -> None:
+    # regression: negative timedeltas must keep their sign
+    # https://github.com/python-humanize/humanize/issues/379
+    assert humanize.precisedelta(dt.timedelta(seconds=-3661)) == "-1 hour, 1 minute and 1 second"
+    assert humanize.precisedelta(dt.timedelta(seconds=3661)) == "1 hour, 1 minute and 1 second"
+    assert (
+        humanize.precisedelta(dt.timedelta(seconds=-3661), minimum_unit="minutes")
+        == "-1 hour and 1.02 minutes"
+    )
+
     with pytest.raises(
         ValueError,
         match="Minimum unit is suppressed and no suitable replacement was found",

From a8551abc7a8b951d042a347892c277eeb23aba38 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Mon, 7 Sep 2026 13:24:03 +0000
Subject: [PATCH 2/2] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 tests/test_time.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tests/test_time.py b/tests/test_time.py
index fef2e0a7..10004d03 100644
--- a/tests/test_time.py
+++ b/tests/test_time.py
@@ -841,8 +841,14 @@ def test_precisedelta_bogus_call() -> None:
 def test_precisedelta_negative() -> None:
     # regression: negative timedeltas must keep their sign
     # https://github.com/python-humanize/humanize/issues/379
-    assert humanize.precisedelta(dt.timedelta(seconds=-3661)) == "-1 hour, 1 minute and 1 second"
-    assert humanize.precisedelta(dt.timedelta(seconds=3661)) == "1 hour, 1 minute and 1 second"
+    assert (
+        humanize.precisedelta(dt.timedelta(seconds=-3661))
+        == "-1 hour, 1 minute and 1 second"
+    )
+    assert (
+        humanize.precisedelta(dt.timedelta(seconds=3661))
+        == "1 hour, 1 minute and 1 second"
+    )
     assert (
         humanize.precisedelta(dt.timedelta(seconds=-3661), minimum_unit="minutes")
         == "-1 hour and 1.02 minutes"