From fa7189b480d48407bbfafbbf67b1910430a4dc54 Mon Sep 17 00:00:00 2001
From: Massimiliano Culpo <massimiliano.culpo@gmail.com>
Date: Tue, 23 Nov 2021 18:06:17 +0100
Subject: Remove support for Python 2.6 (#27256)

Modifications:
- [x] Removed `centos:6` unit test, adjusted vermin checks
- [x] Removed backport of `collections.OrderedDict`
- [x] Removed backport of `functools.total_ordering`
- [x] Removed Python 2.6 specific skip markers in unit tests
- [x] Fixed a few minor Python 2.6 related TODOs in code

Updating the vendored dependencies will be done in separate PRs
---
 .github/workflows/unit_tests.yaml | 37 ++-----------------------------------
 1 file changed, 2 insertions(+), 35 deletions(-)

(limited to '.github')

diff --git a/.github/workflows/unit_tests.yaml b/.github/workflows/unit_tests.yaml
index 2e8f9deef6..585271e04c 100644
--- a/.github/workflows/unit_tests.yaml
+++ b/.github/workflows/unit_tests.yaml
@@ -24,9 +24,9 @@ jobs:
         pip install --upgrade pip
         pip install --upgrade vermin
     - name: vermin (Spack's Core)
-      run: vermin --backport argparse --violations --backport typing -t=2.6- -t=3.5- -vvv lib/spack/spack/ lib/spack/llnl/ bin/
+      run: vermin --backport argparse --violations --backport typing -t=2.7- -t=3.5- -vvv lib/spack/spack/ lib/spack/llnl/ bin/
     - name: vermin (Repositories)
-      run: vermin --backport argparse --violations --backport typing -t=2.6- -t=3.5- -vvv var/spack/repos
+      run: vermin --backport argparse --violations --backport typing -t=2.7- -t=3.5- -vvv var/spack/repos
   # Run style checks on the files that have been changed
   style:
     runs-on: ubuntu-latest
@@ -193,39 +193,6 @@ jobs:
       if: ${{ needs.changes.outputs.with_coverage == 'true' }}
       with:
         flags: shelltests,linux
-  # Test for Python2.6 run on Centos 6
-  centos6:
-    needs: [ validate, style, changes ]
-    runs-on: ubuntu-latest
-    container: spack/github-actions:centos6
-    steps:
-    - name: Run unit tests (full test-suite)
-      # The CentOS 6 container doesn't run with coverage, but
-      # under the same conditions it runs the full test suite
-      if: ${{ needs.changes.outputs.with_coverage == 'true' }}
-      env:
-          HOME: /home/spack-test
-          SPACK_TEST_SOLVER: original
-      run: |
-          whoami && echo $HOME && cd $HOME
-          git clone "${{ github.server_url }}/${{ github.repository }}.git" && cd spack
-          git fetch origin "${{ github.ref }}:test-branch"
-          git checkout test-branch
-          . .github/workflows/setup_git.sh
-          bin/spack unit-test -x
-    - name: Run unit tests (only package tests)
-      if: ${{ needs.changes.outputs.with_coverage == 'false' }}
-      env:
-          HOME: /home/spack-test
-          ONLY_PACKAGES: true
-          SPACK_TEST_SOLVER: original
-      run: |
-          whoami && echo $HOME && cd $HOME
-          git clone "${{ github.server_url }}/${{ github.repository }}.git" && cd spack
-          git fetch origin "${{ github.ref }}:test-branch"
-          git checkout test-branch
-          . .github/workflows/setup_git.sh
-          bin/spack unit-test -x -m "not maybeslow" -k "package_sanity"
 
   # Test RHEL8 UBI with platform Python. This job is run
   # only on PRs modifying core Spack
-- 
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