Function raising_input

IPython/core/tests/test_debugger.py:247–252

(msg="", called=[0])

    KeyboardInterrupt cause debugging to cease.
    """
    def raising_input(msg="", called=[0]):
        called[0] += 1
        if called[0] == 1:
            raise KeyboardInterrupt()
        else:
            raise AssertionError("input() should only be called once!")

    with patch.object(builtins, "input", raising_input):
        debugger.InterruptiblePdb().set_trace()