Refresh Python versions in CI and generated workflows

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.11"
+          python-version: "3.x"
           cache: pip
       - name: Install dependencies
         run: python -m pip install .[test]
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python_version: ["3.11", "3.12", "3.13"]
+        python_version: ["3.11", "3.12", "3.13", "3.14", "3.15"]
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
@@ -45,7 +45,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: 3.13
+          python-version: "3.15"
           cache: pip
       - name: install dependencies
         run: |
@@ -60,7 +60,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: 3.13
+          python-version: "3.15"
           cache: pip
       - name: install dependencies
         run: |

PROVISIONING.md

@@ -2,6 +2,12 @@
 
 This document describes how to set up machines to serve as self-hosted runners for `bench_runner`.
 
+The Python interpreter running `bench_runner` must be Python 3.11 or later.
+The generated Linux x86-64 benchmark jobs and pystats jobs request Python 3.15
+through `actions/setup-python`. Other benchmark jobs use `python` on Linux,
+`python3` on macOS, or `py` on Windows; these commands must select a supported
+interpreter for the runner service account.
+
 These instructions are only a WFM™ rough guide: This is the sort of information that gets out of date rather quickly.
 
 While cloud VMs will *work*, we highly recommend using bare metal machines for the most stable results.
@@ -19,7 +25,9 @@ sudo apt install python3 build-essential ccache gdb lcov pkg-config \
       lzma lzma-dev tk-dev uuid-dev zlib1g-dev linux-perf
 ```
 
-The self-hosted runner needs to have `python` be Python 3.9 or later.
+Install Python 3.11 or later with `pip` and `venv` support, and make sure `python`
+selects it on the runner service's `PATH`. Verify this with
+`python --version` as the account that runs the service.
 
 ### Enable ccache
 
@@ -57,9 +65,12 @@ eval "$(/opt/homebrew/bin/brew shellenv)"
 #### Install brew packages
 
 ```bash session
-brew install openssl jq python@3.9 coreutils ccache
+brew install openssl jq python coreutils ccache
 ```
 
+An existing Python 3.11 or later installation is also supported. Make sure
+`python3 --version` selects a supported version as the account running the runner service.
+
 ## Microsoft Windows
 
 ### Adjust settings and permissions
@@ -86,7 +97,9 @@ Install [git for Windows](https://git-scm.com/download/win).
 
 ### Install Python
 
-Install Python 3.9 or later from [python.org](https://python.org), and install for all users.
+Install Python 3.11 or later from [python.org](https://python.org), and make it
+available to the account running the runner service. Verify that `py --version`
+selects a supported version for that account.
 
 ### Install Clang 19
 

bench_runner/templates/_benchmark.src.yml

@@ -109,7 +109,7 @@ jobs:
         if: ${{ runner.arch == 'X64' }}
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.11"
+          python-version: "3.15"
       - name: Building Python and running pyperformance
         run: |
           python workflow_bootstrap.py ${{ inputs.fork }} ${{ inputs.ref }} ${{ inputs.machine }} ${{ inputs.benchmarks || 'all' }} ${{ env.flags }} ${{ inputs.force && '--force' || '' }} ${{ inputs.pgo && '--pgo' || '' }} ${{ inputs.perf && '--perf' || '' }} --run_id ${{ github.run_id }}

bench_runner/templates/_find_failures.src.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Setup system Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.11"
+          python-version: "3.x"
           cache: pip
       - name: Install dependencies from PyPI
         run: python -m pip install -r requirements.txt

bench_runner/templates/_generate.src.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Setup system Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.11"
+          python-version: "3.x"
           cache: pip
       - name: Install dependencies from PyPI
         run: python -m pip install -r requirements.txt

bench_runner/templates/_notify.src.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Setup system Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.11"
+          python-version: "3.x"
           cache: pip
       - name: Install dependencies from PyPI
         run: |

bench_runner/templates/_pystats.src.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Setup system Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.11"
+          python-version: "3.15"
       - name: Build CPython and run pyperformance benchmarks
         run: |
           python workflow_bootstrap.py --pystats ${{ inputs.fork }} ${{ inputs.ref }} all ${{ inputs.benchmarks || 'all' }} ${{ env.flags }} --run_id ${{ github.run_id }}

bench_runner/templates/benchmark.src.yml

@@ -52,7 +52,7 @@ jobs:
       - name: Setup system Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.11"
+          python-version: "3.x"
           cache: pip
       - name: Checkout CPython
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

bench_runner/templates/ci.src.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.11"
+          python-version: "3.x"
           cache: pip
       - name: Install dependencies
         run: |

pyrightconfig.json

@@ -1,3 +1,4 @@
 {
+  "pythonVersion": "3.11",
   "useLibraryCodeForTypes": false
 }