def test_invalid_scalar_index(adata, index):
    # https://github.com/theislab/anndata/issues/619
    with pytest.raises(IndexError, match=r".*index.* out of range\."):
        _ = adata[index]
def _handle_sigint_if_enabled(self, signum, _frame):
        with self._ignore_sigint_lock:
            self._check_sigint_gate_is_correct()
            threads_ignoring_sigint = self._threads_ignoring_sigint
            ignoring_sigint_v2_engine = self._ignoring_sigint_v2_engine
        if threads_ignoring_sigint == 0 and not ignoring_sigint_v2_engine:
            self.handle_sigint(signum, _frame)