Method close

Lib/test/test_interpreters/utils.py:585–589

()

        r_out, w_out = self.pipe()

        def close():
            _close_file(r_in)
            _close_file(w_in)
            _close_file(r_out)
            _close_file(w_out)

        # Start running (and wait).
        script = dedent(f"""