pass --python to "uv pip install"

Author: denik

integration/bundle/init_default_python_test.go

@@ -60,10 +60,10 @@ func testDefaultPython(t *testing.T, pythonVersion string) {
 		testcli.PrepareReplacementsUser(t, replacements, *user)
 	}
 
-	tmpDir1 := pythontest.RequirePythonVENV(t, ctx, pythonVersion, true)
+	tmpDir1, pythonExe := pythontest.RequirePythonVENV(t, ctx, pythonVersion, true)
 	extras, ok := extraInstalls[pythonVersion]
 	if ok {
-		args := append([]string{"pip", "install"}, extras...)
+		args := append([]string{"pip", "install", "--python", pythonExe}, extras...)
 		testutil.RunCommand(t, "uv", args...)
 	}
 

libs/python/pythontest/pythontest.go

@@ -10,7 +10,7 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func RequirePythonVENV(t testutil.TestingT, ctx context.Context, pythonVersion string, checkVersion bool) string {
+func RequirePythonVENV(t testutil.TestingT, ctx context.Context, pythonVersion string, checkVersion bool) (string, string) {
 	tmpDir := t.TempDir()
 	testutil.Chdir(t, tmpDir)
 
@@ -28,5 +28,5 @@ func RequirePythonVENV(t testutil.TestingT, ctx context.Context, pythonVersion s
 		require.True(t, strings.HasPrefix(actualVersion, expectVersion), "Running %s --version: Expected %v, got %v", pythonExe, expectVersion, actualVersion)
 	}
 
-	return tmpDir
+	return tmpDir, pythonExe
 }