refactor: Change to return type of utc_now from pendulum.DateTime…

… to `datetime.datetime` (#2453)

singer_sdk/authenticators.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import base64
+import datetime
 import math
 import typing as t
 import warnings
@@ -17,8 +18,6 @@
 if t.TYPE_CHECKING:
     import logging
 
-    from pendulum import DateTime
-
     from singer_sdk.streams.rest import RESTStream
 
 
@@ -382,7 +381,7 @@ def __init__(
         # Initialize internal tracking attributes
         self.access_token: str | None = None
         self.refresh_token: str | None = None
-        self.last_refreshed: DateTime | None = None
+        self.last_refreshed: datetime.datetime | None = None
         self.expires_in: int | None = None
 
     @property

singer_sdk/helpers/_util.py

@@ -8,6 +8,9 @@
 
 import pendulum
 
+if t.TYPE_CHECKING:
+    import datetime
+
 
 def read_json_file(path: PurePath | str) -> dict[str, t.Any]:
     """Read json file, throwing an error if missing."""
@@ -25,6 +28,7 @@ def read_json_file(path: PurePath | str) -> dict[str, t.Any]:
     return t.cast(dict, json.loads(Path(path).read_text(encoding="utf-8")))
 
 
-def utc_now() -> pendulum.DateTime:
+def utc_now() -> datetime.datetime:
     """Return current time in UTC."""
+    # TODO: replace with datetime.datetime.now(tz=datetime.timezone.utc)
     return pendulum.now(tz="UTC")