func TestConcurrentCodeSrc(t *testing.T) {
	py.RegisterModule(&py.ModuleImpl{
		Info:    py.ModuleInfo{Name: "codesrc_test", FileDesc: "<codesrc_test>"},
		CodeSrc: "X = 42\n",
	})
	var wg sync.WaitGroup
	for i := 0; i < 8; i++ {
		wg.Add(1)
		go func() {
			defer wg.Done()
			ctx := py.NewContext(py.DefaultContextOpts())
			defer ctx.Close()
			if err := py.Import(ctx, "codesrc_test"); err != nil {
				t.Error(err)
			}
		}()
	}
	wg.Wait()
}