From be73b234029e5b3fe0aa6553c4c96becea8b0ab5 Mon Sep 17 00:00:00 2001
From: Pavel Zwerschke <pavel.zwerschke@quantco.com>
Date: Fri, 16 Oct 2026 11:05:25 +0200
Subject: [PATCH] add support for python 3.15

---
 .github/workflows/ci-copier.yml         | 2 +-
 copier.yml                              | 1 +
 template/.github/workflows/ci.yml.jinja | 2 +-
 template/pixi.toml.jinja                | 8 ++++++++
 template/pyproject.toml.jinja           | 3 +++
 tests/test_template.py                  | 6 ++++--
 6 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/ci-copier.yml b/.github/workflows/ci-copier.yml
index f40da8e..f2f3ee8 100644
--- a/.github/workflows/ci-copier.yml
+++ b/.github/workflows/ci-copier.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        minimal-python-version: [py311, py314]
+        minimal-python-version: [py311, py315]
     steps:
       - name: Check out branch
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
diff --git a/copier.yml b/copier.yml
index 0070be1..cbf1da0 100644
--- a/copier.yml
+++ b/copier.yml
@@ -50,6 +50,7 @@ minimal_python_version:
     - py312
     - py313
     - py314
+    - py315
   default: py311
 
 use_devcontainer:
diff --git a/template/.github/workflows/ci.yml.jinja b/template/.github/workflows/ci.yml.jinja
index c3bae46..e463e0d 100644
--- a/template/.github/workflows/ci.yml.jinja
+++ b/template/.github/workflows/ci.yml.jinja
@@ -36,7 +36,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-{%- set python_versions = ["py311", "py312", "py313", "py314"] %}
+{%- set python_versions = ["py311", "py312", "py313", "py314", "py315"] %}
 {%- set minimal_version_index = python_versions.index(minimal_python_version) %}
         environment:
         {%- for python_version in python_versions[minimal_version_index:] %}
diff --git a/template/pixi.toml.jinja b/template/pixi.toml.jinja
index 396392a..1155ab5 100644
--- a/template/pixi.toml.jinja
+++ b/template/pixi.toml.jinja
@@ -71,6 +71,11 @@ python = "3.13.*"
 [feature.py314.dependencies]
 python = "3.14.*"
 {%- endif %}
+{%- if minimal_python_version <= "py315" %}
+
+[feature.py315.dependencies]
+python = "3.15.*"
+{%- endif %}
 
 [environments]
 default = ["test", "build", "lint"]
@@ -86,3 +91,6 @@ py313 = ["py313", "test"]
 {%- if minimal_python_version <= "py314" %}
 py314 = ["py314", "test"]
 {%- endif %}
+{%- if minimal_python_version <= "py315" %}
+py315 = ["py315", "test"]
+{%- endif %}
diff --git a/template/pyproject.toml.jinja b/template/pyproject.toml.jinja
index 161d5a5..cb6efc1 100644
--- a/template/pyproject.toml.jinja
+++ b/template/pyproject.toml.jinja
@@ -19,7 +19,10 @@ classifiers = [
 {%- if minimal_python_version <= "py313" %}
   "Programming Language :: Python :: 3.13",
 {%- endif %}
+{%- if minimal_python_version <= "py314" %}
   "Programming Language :: Python :: 3.14",
+{%- endif %}
+  "Programming Language :: Python :: 3.15",
 ]
 requires-python = ">={{ minimal_python_version.replace('py3', '3.') }}"
 readme = "README.md"
diff --git a/tests/test_template.py b/tests/test_template.py
index 27d2b8d..2da49cf 100644
--- a/tests/test_template.py
+++ b/tests/test_template.py
@@ -53,10 +53,12 @@ def test_agents_md(generated_project):
     assert claude_md.resolve() == (generated_project / "AGENTS.md").resolve()
 
 
-@pytest.mark.parametrize("minimal_python_version", ["py311", "py312", "py313", "py314"])
+@pytest.mark.parametrize(
+    "minimal_python_version", ["py311", "py312", "py313", "py314", "py315"]
+)
 def test_minimal_python_version(generate_project, minimal_python_version: str):
     minimal_python_version_str = minimal_python_version.replace("py3", "3.")
-    all_supported_python_versions = ["3.11", "3.12", "3.13", "3.14"]
+    all_supported_python_versions = ["3.11", "3.12", "3.13", "3.14", "3.15"]
     all_supported_python_envs = [
         f"py{version.replace('.', '')}" for version in all_supported_python_versions
     ]