MNT Use PYTHON_GIL=0 only at test time to avoid interference with conda (scikit-learn#31341)

lesteve · web-flow · commit 27f2af30fa34 · 2025-05-09T08:10:27.000Z
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -84,7 +84,6 @@ jobs:
       )
     matrix:
       pylatest_free_threaded:
-        PYTHON_GIL: '0'
         DISTRIB: 'conda-free-threaded'
         LOCK_FILE: './build_tools/azure/pylatest_free_threaded_linux-64_conda.lock'
         COVERAGE: 'false'
diff --git a/build_tools/azure/test_script.sh b/build_tools/azure/test_script.sh
@@ -75,6 +75,14 @@ else
     echo "Could not inspect CPU architecture."
 fi
 
+if [[ "$DISTRIB" == "conda-free-threaded" ]]; then
+    # Make sure that GIL is disabled even when importing extensions that have
+    # not declared free-threaded compatibility. This can be removed when numpy,
+    # scipy and scikit-learn extensions all have declared free-threaded
+    # compatibility.
+    export PYTHON_GIL=0
+fi
+
 TEST_CMD="$TEST_CMD --pyargs sklearn"
 
 set -x

Original file line number	Diff line number	Diff line change
`@@ -84,7 +84,6 @@ jobs:`
`84`	`84`	`)`
`85`	`85`	`matrix:`
`86`	`86`	`pylatest_free_threaded:`
`87`		`- PYTHON_GIL: '0'`
`88`	`87`	`DISTRIB: 'conda-free-threaded'`
`89`	`88`	`LOCK_FILE: './build_tools/azure/pylatest_free_threaded_linux-64_conda.lock'`
`90`	`89`	`COVERAGE: 'false'`