The `frame` method in managers.py has a bug about learning-opencv-4-computer-vision-with-python-third-edition HOT 1 CLOSED

Hello, and thank you for the query. The Cameo demo code does work for me with the current version of the frame method, as follows:

    @property
    def frame(self):
        if self._enteredFrame and self._frame is None:
            _, self._frame = self._capture.retrieve(
                    self._frame, self.channel)
        return self._frame

Note that frame is not intended to return a new frame every time it is called. It is intended to return a frame that was grabbed the last time enterFrame was called. See Chapter 2 for details about the distinction between grab and retrieve, and for details about the order of method calls in the demo.

from learning-opencv-4-computer-vision-with-python-third-edition.