Remove python datetime utc deprecations

sqlalchemy_utils/models.py

@@ -1,4 +1,4 @@
-from datetime import datetime
+from datetime import datetime, timezone
 
 import sqlalchemy as sa
 
@@ -22,15 +22,15 @@ class SomeModel(Base, Timestamp):
             id = sa.Column(sa.Integer, primary_key=True)
     """
 
-    created = sa.Column(sa.DateTime, default=datetime.utcnow, nullable=False)
-    updated = sa.Column(sa.DateTime, default=datetime.utcnow, nullable=False)
+    created = sa.Column(sa.DateTime, default=datetime.now(timezone.utc), nullable=False)
+    updated = sa.Column(sa.DateTime, default=datetime.now(timezone.utc), nullable=False)
 
 
 @sa.event.listens_for(Timestamp, 'before_update', propagate=True)
 def timestamp_before_update(mapper, connection, target):
     # When a model with a timestamp is updated; force update the updated
     # timestamp.
-    target.updated = datetime.utcnow()
+    target.updated = datetime.now(timezone.utc)
 
 
 NOT_LOADED_REPR = '<not loaded>'

tests/test_models.py

@@ -1,9 +1,8 @@
-from datetime import datetime
-
 import pytest
 import sqlalchemy as sa
 import sqlalchemy.orm
 
+from datetime import datetime, timezone
 from sqlalchemy_utils import generic_repr, Timestamp
 
 
@@ -17,26 +16,26 @@ class Article(Base, Timestamp):
         return Article
 
     def test_created(self, session, Article):
-        then = datetime.utcnow()
+        then = datetime.now(timezone.utc)
         article = Article()
 
         session.add(article)
         session.commit()
 
-        assert article.created >= then and article.created <= datetime.utcnow()
+        assert then <= article.created <= datetime.now(timezone.utc)
 
     def test_updated(self, session, Article):
         article = Article()
 
         session.add(article)
         session.commit()
 
-        then = datetime.utcnow()
+        then = datetime.now(timezone.utc)
         article.name = "Something"
 
         session.commit()
 
-        assert article.updated >= then and article.updated <= datetime.utcnow()
+        assert then <= article.updated <= datetime.now(timezone.utc)
 
 
 class TestGenericRepr: