Error running examples from depthai-python

rymd80

I'm using a python virtual environment and installing dependencies using the requirments.txt, (installed via install_requirements.py) from the depthai git repro.

The depthai version (from requirments.txt) is:
depthai==0.4.1.1; platform_machine != "armv6l" or platform_machine != "aarch64"

I can successfully run depthai_demo.py from depthai git repo, but I get the following error when running any of the examples from https://github.com/luxonis/depthai-python.

(depthai) pi@raspberrypi:_{/dev/depthai-python/examples$} python3 27_spatial_location_calculator.py
Traceback (most recent call last):
File "27_spatial_location_calculator.py", line 9, in <module>
pipeline = dai.Pipeline()
TypeError: depthai.Pipeline: No constructor defined!

and second example:

(depthai) pi@raspberrypi:_{/dev/depthai-python/examples$} python3 01_rgb_preview.py
Traceback (most recent call last):
File "01_rgb_preview.py", line 7, in <module>
pipeline = dai.Pipeline()
TypeError: depthai.Pipeline: No constructor defined!

So are depthai-python examples compatible with depthai 0.4.1.1 or do I need to manage multiple versions of depthai or other dependencies? Or... am I doing something else wrong?

Thanks in advance.

dhruvsheth-ai

As far as I know, depthai_python.py from depthai repo is using Gen1 Pipeline, and the examples "27_spatial_location_calculator.py" is using Gen2 Pipeline. So you might have to create another Virtual Env with the requirments and depthai version for Gen2. You can install libs required for that through here - https://github.com/luxonis/depthai-python/blob/main/examples/install_requirements.py

rymd80

@dhruvsheth-ai#935 Thanks for the information on gen1 vs gen2. I created a new virtual env and ran the install_requirments.py in it, and the examples work now.