TypeError: 'pyrealsense2.pyrealsense2.config' object is not subscriptable

[vigkrish123]

Required Info
Camera Model	D435i
Operating System & Version	windows 10
Platform	Laptop
Language	{python/opencv}

I am currently using Realsense D435i camera for my project. I am using the pyrealsense2 library for getting the stream but I am facing the error "TypeError: 'pyrealsense2.pyrealsense2.config' object is not subscriptable" every time I try to access the frames from the camera for detection purpose.

If I use my laptop webcam as the source of stream, it works but If i use pyrealsense and realsense camera, I face this issue. Kindly provide me with some insight on what I can do or why its not able to access the frames.

[MartyG-RealSense]

Hi @vigkrish123 Your pipeline setup and config code looks okay. As a starting point in investigating your case, I note that you have placed your colorwriter instruction directly after the pipe start instruction, whilst a similar .avi saving line in #2731 (comment) places it immediately before the pipe start line.

Please try moving the colorwriter instruction to the line before pipe start in order to eliminate it as a possible cause of your problem.

colorwriter = cv2.VideoWriter('output_realsense.avi', cv2.VideoWriter_fourcc(*'XVID'), 30, (640, 480), 1)
pipeline.start(config)

[vigkrish123]

I tried moving the pipeline start line but I still get the same error. I don't understand why it says 'pyrealsense2.pyrealsense2.config' object is not subscriptable because normal rgb streaming and saving works fine but when it reaches batch_boxes, it stops

[MartyG-RealSense]

I have not seen a script like this before. Since the program is apparently failing at the batch_boxes line though, I wonder whether the error message is referring to having problems with the config['model'] part of that line (the config values from the config file containing box dimensions) and not the camera stream config.

[vigkrish123]

I kinda fixed the issue. I used rs.align and align.process and it somehow worked. But facing issue with saving the stream though. Anyways I will close the issue. Thanks a lot for your quick response.

[MartyG-RealSense]

You are very welcome, @vigkrish123 - it's great to hear that you made progress!