CoDrone is_ready_to_fly()失败

Question

我已经开始用python3 (基础和机器学习)编程。为了练习OOP，我创建了下面的python程序来控制无人机(从CoDrone到robolink.com)。这些类主要是为此目的创建的(实践OOP)，因此我想保留它们。然而，使用类会带来一些复杂性，我怀疑这可能是程序无法工作的原因。

test.py文件：

import CoDrone


class Drone:
    """Parent class with general data."""

    def __init__(self):
        self.drone = CoDrone.CoDrone()
        self.state = ''
        self.flight_state = False

    def get_statuses(self):
        """Get statuses from drone."""
        self.state = 'placeholder'
        self.flight_state = self.drone.is_ready_to_fly()
        return print(f"[info]: General State:\t{self.state}\n" +
                     f"[info]: Flight state:\t{self.flight_state}")


class Connection(Drone):
    """Connection class."""

    def __init__(self):
        self.pair_status = False
        super().__init__()

    def connect_ble(self):
        """Connect drone with BLE board."""
        # For me the BLE board is connected to COM5 port (device management).
        # TODO: Print error when BLE board is not connected.
        print("\nConnecting to drone #7852 on port COM5...")
        self.pair_status = self.drone.pair('7852', 'COM5')

        if self.pair_status:
            print("Drone successfully paired")
        else:
            print("Try again for any drone and on any port")
            self.drone.pair()

    def disconnect_ble(self):
        """Disconnect drone from BLE board."""
        self.drone.disconnect()
        self.pair_status = False


class Flight(Drone):
    """Flight movements class."""

    def __init__(self):
        super().__init__()

    def drone_dance(self):
        """Perform dance with drone."""
        self.get_statuses()
        if self.flight_state:  # TODO: Why is the status not TRUE?
            print("Dance!, Dance!, Dance!")
            self.drone.takeoff()
            self.drone.hover(5)
            self.drone.land()
        else:
            print(f"\nDrone is not ready to fly.\n\nCheck:\n" +
                  f"1. Is the drone oriented right-side up?\n" +
                  f"2. Is the drone already flying?")
            while True:
                usri_continue = input("Do you want to try again? (y/n):\n")
                if usri_continue == 'y' or usri_continue == 'Y':
                    self.drone_dance()
                    break
                elif usri_continue == 'n' or usri_continue == 'N':
                    print(f"\n[!!!!]: Program terminated")
                    break
                else:
                    continue


if __name__ == '__main__':
    DRONE_CONNECT = Connection()
    DRONE_FLIGHT = Flight()

    DRONE_CONNECT.connect_ble()
    DRONE_FLIGHT.drone_dance()
    DRONE_CONNECT.disconnect_ble()
    DRONE_CONNECT.get_statuses()

在课堂上："Flight(Drone)"，方法："drone_dance()“应该让无人机在self.flight_state是True时移动。但是，当变量被选中时，状态是False。

def drone_dance(self):
        """Perform dance with drone."""
        self.get_statuses()
        if self.flight_state:  # TODO: Why is the status not TRUE?
            print("Dance!, Dance!, Dance!")
            self.drone.takeoff()
            self.drone.hover(5)
            self.drone.land()
        else:

关于飞()的文档

此函数通过返回布尔值来检查无人机是否已准备好飞行。无人机已经准备好了，如果它的方向是向右向上，而不是飞行。

如果你知道为什么self.flight_state是False，我希望它是True，因为无人机是成对的和直立的。

Answer 1

我已经更改为代码(见下面)，现在它可以工作了。

import CoDrone

drone = CoDrone.CoDrone()


class Drone:
    """Parent class with general data."""

    def get_statuses(self):
        """Get statuses from drone."""
        self.state = drone.get_state()
        self.flight_state = drone.is_ready_to_fly()
        return print(f"[info]: General State:\t{self.state}\n" +
                     f"[info]: Flight state:\t{self.flight_state}")


class Connection(Drone):
    """Connection class."""

    def __init__(self):
        self.pair_status = False

    def connect_ble(self):
        """Connect drone with BLE board."""
        # For me the BLE board is connected to COM5 port (device management).
        # TODO: Print error when BLE board is not connected.
        print("\nConnecting to drone #7852 on port COM5...")
        self.pair_status = drone.pair('7852', 'COM5')

        if self.pair_status:
            print("Drone successfully paired")
            self.get_statuses()
        else:
            print("Try again for any drone and on any port")
            drone.pair()

    def disconnect_ble(self):
        """Disconnect drone from BLE board."""
        drone.disconnect()
        self.pair_status = False
        print("Drone is disconnected.")


class Flight(Drone):
    """Flight movements class."""

    def drone_dance(self):
        """Perform dance with drone."""
        Connection().connect_ble()
        if drone.is_ready_to_fly():
            print("Dance!, Dance!, Dance!")
            drone.takeoff()
            self.get_statuses()
            drone.hover(2)
            drone.land()
        else:
            print(f"\nDrone is not ready to fly.\n\nCheck:\n" +
                  f"1. Is the drone oriented right-side up?\n" +
                  f"2. Is the drone already flying?")
            while True:
                usri_continue = input("Do you want to try again? (y/n):\n")
                if usri_continue == 'y' or usri_continue == 'Y':
                    self.drone_dance()
                    break
                elif usri_continue == 'n' or usri_continue == 'N':
                    Connection().disconnect()
                    print(f"\n[!!!!]: Program terminated")
                    break
                else:
                    continue


def main():
    """Execute when program is run, not when imported."""
    if __name__ == '__main__':
        try:
            DRONE_FLIGHT = Flight()
            DRONE_FLIGHT.drone_dance()
        except:
            print("[error}: BLE board not connected.")
            while True:
                usri_continue = input("Do you want to try again? (y/n):\n")
                if usri_continue == 'y' or usri_continue == 'Y':
                    main()
                    break
                elif usri_continue == 'n' or usri_continue == 'N':
                    print(f"\n[!!!!]: yProgram terminated")
                    DRONE_CONNECT = Connection()
                    DRONE_CONNECT.disconnect_ble()
                    break
                else:
                    continue


main()