Function build_range_error

cmd2/argparse_utils.py:268–284

Build an error message when the the number of arguments provided is not within the expected range.

(range_min: int, range_max: float)

def build_range_error(range_min: int, range_max: float) -> str:
    """Build an error message when the the number of arguments provided is not within the expected range."""
    err_msg = "expected "

    if range_max == constants.INFINITY:
        plural = "" if range_min == 1 else "s"
        err_msg += f"at least {range_min}"
    else:
        plural = "" if range_max == 1 else "s"
        if range_min == range_max:
            err_msg += f"{range_min}"
        else:
            err_msg += f"{range_min} to {range_max}"

    err_msg += f" argument{plural}"

    return err_msg


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