From 9a73e26897e629f622955f0ee7ecfa876d30fdb6 Mon Sep 17 00:00:00 2001
From: Stan Ulbrych <stan@python.org>
Date: Tue, 30 Jun 2026 11:49:15 +0200
Subject: [PATCH 1/3] gh-110793: Add CI job that runs tests with an installed
 build

---
 .github/workflows/build.yml            |  8 +++++
 .github/workflows/reusable-install.yml | 41 ++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 .github/workflows/reusable-install.yml

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d9a956a6bf53038..7099939a64c0676 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -391,6 +391,12 @@ jobs:
     if: needs.build-context.outputs.run-wasi == 'true'
     uses: ./.github/workflows/reusable-wasi.yml
 
+  build-ubuntu-installed:
+    name: 'Ubuntu ARM (installed)'
+    needs: build-context
+    if: needs.build-context.outputs.run-ubuntu == 'true'
+    uses: ./.github/workflows/reusable-install.yml
+
   test-hypothesis:
     name: "Hypothesis tests on Ubuntu"
     runs-on: ubuntu-24.04
@@ -670,6 +676,7 @@ jobs:
     - build-ios
     - build-emscripten
     - build-wasi
+    - build-ubuntu-installed
     - test-hypothesis
     - build-asan
     - build-san
@@ -717,6 +724,7 @@ jobs:
             && '
             build-ubuntu,
             build-ubuntu-ssltests,
+            build-ubuntu-installed,
             test-hypothesis,
             build-asan,
             build-san,
diff --git a/.github/workflows/reusable-install.yml b/.github/workflows/reusable-install.yml
new file mode 100644
index 000000000000000..18f27a3d05bcd28
--- /dev/null
+++ b/.github/workflows/reusable-install.yml
@@ -0,0 +1,41 @@
+name: Reusable Ubuntu (Installed)
+
+on:
+  workflow_call:
+
+permissions:
+  contents: read
+
+env:
+  FORCE_COLOR: 1
+
+jobs:
+  build-install-reusable:
+    name: 'Build, install and test'
+    runs-on: ubuntu-24.04-arm
+    timeout-minutes: 60
+    env:
+      PYTHONSTRICTEXTENSIONBUILD: 1
+    steps:
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      with:
+        persist-credentials: false
+    - name: Runner image version
+      run: echo "IMAGE_OS_VERSION=${ImageOS}-${ImageVersion}" >> "$GITHUB_ENV"
+    - name: Register gcc problem matcher
+      run: echo "::add-matcher::.github/problem-matchers/gcc.json"
+    - name: Set install dir
+      run:
+        echo "INSTALL_DIR=$(realpath "${GITHUB_WORKSPACE}/../installed-python")" >> "$GITHUB_ENV"
+    - name: Install dependencies
+      run: sudo ./.github/workflows/posix-deps-apt.sh
+    - name: Configure CPython
+      run: ./configure --config-cache --with-pydebug --prefix="$INSTALL_DIR"
+    - name: Build CPython
+      run: make -j
+    - name: Display build info
+      run: make pythoninfo
+    - name: Install CPython
+      run: make install
+    - name: Test the installed Python
+      run: xvfb-run "$INSTALL_DIR/bin/python3" -m test -j0 --fast-ci --timeout=900

From caf7b269bf13695ce7cf03252b457c5d6cbb3a56 Mon Sep 17 00:00:00 2001
From: Stan Ulbrych <stan@python.org>
Date: Tue, 30 Jun 2026 11:58:14 +0200
Subject: [PATCH 2/3] Pass OS like we do for `reusable-ubunut`

---
 .github/workflows/build.yml            | 4 +++-
 .github/workflows/reusable-install.yml | 9 +++++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7099939a64c0676..c6a03a64e7aa0b7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -392,10 +392,12 @@ jobs:
     uses: ./.github/workflows/reusable-wasi.yml
 
   build-ubuntu-installed:
-    name: 'Ubuntu ARM (installed)'
+    name: 'Ubuntu (installed)'
     needs: build-context
     if: needs.build-context.outputs.run-ubuntu == 'true'
     uses: ./.github/workflows/reusable-install.yml
+    with:
+      os: ubuntu-24.04-arm
 
   test-hypothesis:
     name: "Hypothesis tests on Ubuntu"
diff --git a/.github/workflows/reusable-install.yml b/.github/workflows/reusable-install.yml
index 18f27a3d05bcd28..27e85be48cfe6bd 100644
--- a/.github/workflows/reusable-install.yml
+++ b/.github/workflows/reusable-install.yml
@@ -2,6 +2,11 @@ name: Reusable Ubuntu (Installed)
 
 on:
   workflow_call:
+    inputs:
+      os:
+         description: OS to run the job
+         required: true
+         type: string
 
 permissions:
   contents: read
@@ -11,8 +16,8 @@ env:
 
 jobs:
   build-install-reusable:
-    name: 'Build, install and test'
-    runs-on: ubuntu-24.04-arm
+    name: build, install and test (${{ inputs.os }})
+    runs-on: ${{ inputs.os }}
     timeout-minutes: 60
     env:
       PYTHONSTRICTEXTENSIONBUILD: 1

From 4d5bbd045dcc1b447d57a4750fc2bbb2f45dedac Mon Sep 17 00:00:00 2001
From: Stan Ulbrych <stan@python.org>
Date: Tue, 30 Jun 2026 12:15:12 +0200
Subject: [PATCH 3/3] Run `pythoninfo` on installed, and run test w/
 `python${LDVERSION}`

---
 .github/workflows/reusable-install.yml | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/reusable-install.yml b/.github/workflows/reusable-install.yml
index 27e85be48cfe6bd..102647414f841b4 100644
--- a/.github/workflows/reusable-install.yml
+++ b/.github/workflows/reusable-install.yml
@@ -38,9 +38,14 @@ jobs:
       run: ./configure --config-cache --with-pydebug --prefix="$INSTALL_DIR"
     - name: Build CPython
       run: make -j
-    - name: Display build info
-      run: make pythoninfo
     - name: Install CPython
       run: make install
+    - name: Set installed interpreter
+      run: |
+        ldversion=$(./python -c 'import sysconfig; print(sysconfig.get_config_var("LDVERSION"))')
+        echo "INSTALLED_PYTHON=${INSTALL_DIR}/bin/python${ldversion}" >> "$GITHUB_ENV"
+    - name: Display build info
+      run: |
+        "$INSTALLED_PYTHON" -m test.pythoninfo
     - name: Test the installed Python
-      run: xvfb-run "$INSTALL_DIR/bin/python3" -m test -j0 --fast-ci --timeout=900
+      run: xvfb-run "$INSTALLED_PYTHON" -m test -j0 --fast-ci --timeout=900