Update datetime import for consistency in test_class_method_with_params

- Changed the datetime import to include timezone for improved clarity.
- Updated the usage of datetime.now to utilize timezone.utc for better consistency in handling time zones.

These changes enhance the accuracy of time-related tests in the test suite.

CHANGELOG.md

@@ -0,0 +1,31 @@
+# Changelog
+
+## [1.1.0] - 2024-03-18
+
+### Added
+- Instance-specific caching for both sync and async class methods
+- Smart detection of instance methods vs standalone functions
+- Improved logging for cache operations and method detection
+- Better handling of ignored parameters in instance methods
+
+### Fixed
+- Fixed cache key generation for instance methods to ensure proper instance separation
+- Fixed infinite recursion issues in instance method detection
+- Fixed handling of ignored parameters in instance methods
+- Fixed cache invalidation for instance methods when code changes
+
+### Changed
+- Improved instance method detection to exclude built-in types
+- Updated documentation with instance method caching examples
+- Simplified cache key generation logic
+- Enhanced debug logging for better troubleshooting
+
+### Developer Notes
+- Added comprehensive test coverage for instance method caching
+- Added test cases for both sync and async instance methods
+- Added tests for multiple instances of the same class
+- Added tests for ignored parameters in instance methods
+
+## [1.0.0] - Previous version
+
+Initial release with basic caching functionality.

tests/test_main.py

@@ -101,7 +101,7 @@ def get_data(): ...
 
 
 def test_class_method_with_params(cache):
-    from datetime import datetime, timedelta
+    from datetime import datetime, timedelta, timezone
     from pathlib import Path
     from perscache import Cache
     from perscache.storage import LocalFileStorage
@@ -114,7 +114,7 @@ def cache_method(self, what: str, when: datetime):
             return f"What: {what}, Timestamp: {when.isoformat()}"
 
     pt = PerscacheTest()
-    pt.cache_method("This thing happened", datetime.now(tz=datetime.UTC))
+    pt.cache_method("This thing happened", datetime.now(tz=timezone.utc))
 
 
 def test_sync_class_method(cache):