Add Python 3.14 to CI matrix

Author: basnijholt

.github/workflows/nox.yml

@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.11", "3.12", "3.13"]
+        python-version: ["3.11", "3.12", "3.13", "3.14"]
 
     steps:
     - uses: actions/checkout@v4

adaptive/tests/test_runner.py

@@ -266,33 +266,24 @@ def counting_ask(self, n, tell_pending=True):
         Learner1D.ask = original_ask
 
 
-def test_async_runner_without_event_loop():
-    """Test that AsyncRunner works when no event loop exists.
+def test_async_runner_without_running_event_loop():
+    """Test that AsyncRunner works when no event loop is running.
 
     In Python 3.10+, asyncio.get_event_loop() was deprecated when no running
     event loop exists. In Python 3.12+ it emits a DeprecationWarning, and in
     Python 3.14+ it raises a RuntimeError.
 
     This test ensures AsyncRunner properly handles the case when no event
-    loop exists by creating one.
+    loop is running by creating one.
 
     Regression test for: https://github.com/python-adaptive/adaptive/issues/489
     """
+    # Ensure no event loop is currently running
+    with pytest.raises(RuntimeError, match="no running event loop"):
+        asyncio.get_running_loop()
 
-    def run_in_thread():
-        """Run AsyncRunner in a thread with no event loop."""
-        # Ensure no event loop exists in this thread
-        with pytest.raises(RuntimeError, match="no.*event loop"):
-            asyncio.get_running_loop()
-
-        # AsyncRunner should still work - it should create its own event loop
-        learner = Learner1D(linear, (-1, 1))
-        runner = AsyncRunner(learner, npoints_goal=10, executor=SequentialExecutor())
-        runner.block_until_done()
-        assert learner.npoints >= 10
-
-    import threading
-
-    thread = threading.Thread(target=run_in_thread)
-    thread.start()
-    thread.join()
+    # AsyncRunner should still work - it should create its own event loop
+    learner = Learner1D(linear, (-1, 1))
+    runner = AsyncRunner(learner, npoints_goal=10, executor=SequentialExecutor())
+    runner.block_until_done()
+    assert learner.npoints >= 10

noxfile.py

@@ -6,7 +6,7 @@
 
 nox.options.default_venv_backend = "uv"
 
-python = ["3.11", "3.12", "3.13"]
+python = ["3.11", "3.12", "3.13", "3.14"]
 num_cpus = os.cpu_count() or 1
 xdist = ("-n", "auto") if num_cpus > 2 else ()
 

pyproject.toml

@@ -16,6 +16,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
 ]
 dependencies = [
     "scipy",