From c68aa29141b8906d50909290792b80cdf43e75b0 Mon Sep 17 00:00:00 2001
From: Artur Glavic <artur.glavic@psi.ch>
Date: Mon, 6 Oct 2025 16:53:52 +0200
Subject: [PATCH] deal with backport StrEnum doesn't work with python <3.10 and
 requirements.txt for backports

---
 .github/workflows/unit_tests.yml | 10 ----------
 eos/options.py                   |  7 ++++++-
 requirements.txt                 |  2 ++
 3 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index 4ce6de2..58295b5 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -33,16 +33,6 @@ jobs:
           pip install pytest
           pip install -r requirements.txt
 
-      - name: Backport to 3.8
-        if: matrix.python-version == '3.8'
-        run: |
-          pip install backports.zoneinfo
-
-      - name: Backport StrEnum
-        if: matrix.python-version < '3.11'
-        run: |
-          pip install backports.strenum
-
       - name: Test with pytest
         run: |
           python -m pytest tests
diff --git a/eos/options.py b/eos/options.py
index 0c217ed..c97f6bf 100644
--- a/eos/options.py
+++ b/eos/options.py
@@ -13,7 +13,12 @@ import logging
 try:
     from enum import StrEnum
 except ImportError:
-    from backports.strenum import StrEnum
+    try:
+        # python <3.11 try to use backports
+        from backports.strenum import StrEnum
+    except ImportError:
+        # python <3.10 use Enum instead
+        from enum import Enum as StrEnum
 
 @dataclass
 class CommandlineParameterConfig:
diff --git a/requirements.txt b/requirements.txt
index b86897a..8dddb81 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,5 @@ numpy
 h5py
 orsopy
 numba
+backports.strenum; python_version<"3.11"
+backports.zoneinfo; python_version<"3.9"