fix timezone error (#34)

* fix timezone error

通过更换时区表达模块修复错误 can not import UTC
Fix error can not import UTC by using timezone.utc

* fix format

* bump version

---------

Co-authored-by: T2XX <[email protected]>
Co-authored-by: Jarrett Ye <[email protected]>

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "fsrs"
-version = "2.1.0"
+version = "2.1.1"
 description = "Free Spaced Repetition Scheduler"
 readme = "README.md"
 authors = [{ name = "Jarrett Ye", email = "[email protected]" }]

src/fsrs/models.py

@@ -1,4 +1,4 @@
-from datetime import datetime, timedelta, UTC
+from datetime import datetime, timedelta, timezone
 import copy
 from typing import Tuple, Optional
 from enum import IntEnum
@@ -65,7 +65,7 @@ def __init__(
     ) -> None:
 
         if due is None:
-            self.due = datetime.now(UTC)
+            self.due = datetime.now(timezone.utc)
         else:
             self.due = due
 

tests/test_fsrs.py

@@ -1,5 +1,5 @@
 from fsrs import *
-from datetime import datetime, UTC
+from datetime import datetime, timezone
 import json
 import pytest
 
@@ -40,7 +40,7 @@ def test_repeat(self):
             2.0902,
         )
         card = Card()
-        now = datetime(2022, 11, 29, 12, 30, 0, 0, tzinfo=UTC)
+        now = datetime(2022, 11, 29, 12, 30, 0, 0, timezone.utc)
         scheduling_cards = f.repeat(card, now)
         print_scheduling_cards(scheduling_cards)
 
@@ -78,7 +78,7 @@ def test_datetime(self):
         card = Card()
 
         # new cards should be due immediately after creation
-        assert datetime.now(UTC) >= card.due
+        assert datetime.now(timezone.utc) >= card.due
 
         # comparing timezone aware cards with deprecated datetime.utcnow() should raise a TypeError
         with pytest.raises(TypeError):
@@ -89,12 +89,12 @@ def test_datetime(self):
             f.repeat(card, datetime(2022, 11, 29, 12, 30, 0, 0))
 
         # repeat a card with rating good before next tests
-        scheduling_cards = f.repeat(card, datetime.now(UTC))
+        scheduling_cards = f.repeat(card, datetime.now(timezone.utc))
         card = scheduling_cards[Rating.Good].card
 
         # card object's due and last_review attributes must be timezone aware and UTC
-        assert card.due.tzinfo == UTC
-        assert card.last_review.tzinfo == UTC
+        assert card.due.tzinfo == timezone.utc
+        assert card.last_review.tzinfo == timezone.utc
         # card object's due datetime should be later than its last review
         assert card.due >= card.last_review
 
@@ -120,7 +120,7 @@ def test_serialize(self):
         assert card.to_dict() == copied_card.to_dict()
 
         # (x2) perform the above tests once more with a repeated card
-        scheduling_cards = f.repeat(card, datetime.now(UTC))
+        scheduling_cards = f.repeat(card, datetime.now(timezone.utc))
         repeated_card = scheduling_cards[Rating.Good].card
 
         with pytest.raises(TypeError):