From 4689a7bb0328cbd359d99f6d382d084a1677d2bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Ram=C3=ADrez=20Mondrag=C3=B3n?=
 <edgarrm358@gmail.com>
Date: Thu, 18 Jan 2024 16:53:57 -0600
Subject: [PATCH] refactor: Use `datetime.timezone.utc` instead of `pytz.UTC`
 where possible

---
 .gitignore                     | 4 ++++
 pyproject.toml                 | 1 -
 singer_sdk/_singerlib/utils.py | 8 +++-----
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/.gitignore b/.gitignore
index 18f01b438e..d6a92f65e1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
+# Local Poetry configuration file
+
+poetry.toml
+
 # CI
 
 _changelog_fragment.md
diff --git a/pyproject.toml b/pyproject.toml
index 6bb31917ec..599b199a0a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -214,7 +214,6 @@ fail_under = 82
 [tool.mypy]
 exclude = "tests"
 files = "singer_sdk"
-python_version = "3.8"
 warn_redundant_casts = true
 warn_return_any = true
 warn_unused_configs = true
diff --git a/singer_sdk/_singerlib/utils.py b/singer_sdk/_singerlib/utils.py
index c86b0f37f6..7022ee86f9 100644
--- a/singer_sdk/_singerlib/utils.py
+++ b/singer_sdk/_singerlib/utils.py
@@ -1,9 +1,7 @@
 from __future__ import annotations
 
 import sys
-from datetime import datetime, timedelta
-
-import pytz
+from datetime import datetime, timedelta, timezone
 
 if sys.version_info < (3, 11):
     from backports.datetime_fromisoformat import MonkeyPatch
@@ -33,9 +31,9 @@ def strptime_to_utc(dtimestr: str) -> datetime:
     """
     d_object: datetime = datetime.fromisoformat(dtimestr)
     if d_object.tzinfo is None:
-        return d_object.replace(tzinfo=pytz.UTC)
+        return d_object.replace(tzinfo=timezone.utc)
 
-    return d_object.astimezone(tz=pytz.UTC)
+    return d_object.astimezone(tz=timezone.utc)
 
 
 def strftime(dtime: datetime, format_str: str = DATETIME_FMT) -> str: