Method interactive_python

Lib/test/test_cmd_line_script.py:172–189

(self, separate_stderr=False)

    @contextlib.contextmanager
    def interactive_python(self, separate_stderr=False):
        if separate_stderr:
            p = spawn_python('-i', stderr=subprocess.PIPE)
            stderr = p.stderr
        else:
            p = spawn_python('-i', stderr=subprocess.STDOUT)
            stderr = p.stdout
        try:
            # Drain stderr until prompt
            while True:
                data = stderr.read(4)
                if data == b">>> ":
                    break
                stderr.readline()
            yield p
        finally:
            kill_python(p)
            stderr.close()

    def check_repl_stdout_flush(self, separate_stderr=False):
        with self.interactive_python(separate_stderr) as p: