Fix error with cannot inherit frozen dataclass from a non-frozen one. Make Event class more strict by set frozen true (#258)

Author: mikhaillazko

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [15.2.1] - 2023-02-16
+### Changed
+- winter.messaging: set frozen=true for Event class
+
 ## [15.2.0] - 2023-02-15
 ### Added
 - winter.web.throttling: function allows to reset the accumulated throttling state for a specific user and scope

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "winter"
-version = "15.2.0"
+version = "15.2.1"
 homepage = "https://github.com/WinterFramework/winter"
 description = "Web Framework inspired by Spring Framework"
 authors = ["Alexander Egorov <[email protected]>"]

tests/messaging/events.py

@@ -3,16 +3,16 @@
 from winter.messaging import Event
 
 
-@dataclass
+@dataclass(frozen=True)
 class Event1(Event):
     x: int
 
 
-@dataclass
+@dataclass(frozen=True)
 class Event2(Event):
     x: int
 
 
-@dataclass
+@dataclass(frozen=True)
 class Event3(Event):
     x: int

winter/messaging/event.py

@@ -1,6 +1,6 @@
 from dataclasses import dataclass
 
 
-@dataclass
+@dataclass(frozen=True)
 class Event:
     pass