Ensure Python 3.8+ compatibility regarding StrEnum

aiomonitor/webui/app.py

@@ -1,11 +1,16 @@
 from __future__ import annotations
 
 import dataclasses
-import enum
+import sys
 from importlib.metadata import version
 from pathlib import Path
 from typing import TYPE_CHECKING, Dict, Mapping, Tuple
 
+if sys.version_info >= (3, 11):
+    from enum import StrEnum
+else:
+    from backports.strenum import StrEnum
+
 import trafaret as t
 from aiohttp import web
 from jinja2 import Environment, PackageLoader, select_autoescape
@@ -23,7 +28,7 @@ class WebUIContext:
     jenv: Environment
 
 
-class TaskTypes(enum.StrEnum):
+class TaskTypes(StrEnum):
     RUNNING = "running"
     TERMINATED = "terminated"
 

setup.cfg

@@ -42,6 +42,7 @@ install_requires =
     click>=8
     janus>=1.0
     jinja2>=3.1.2
+    backports.strenum>=1.2.4; python_version<"3.11"
     terminaltables
     trafaret>=2.1.1
     typing-extensions>=4.1