Dev Environment of Rknn-Toolkit2 for Rock3A

#1

Hi,
the development environment of the rknn-toolkit2 is recommended for the Bionic with Python3.6.
https://github.com/rockchip-linux/rknn-toolkit2
However a current given image for Rock 3A is the Focal with Pyrhon3.8. How can I set up the development environment for the NPU of the Rock 3A?
Thanks.

#2

Prob easiest without affecting default python use is https://www.roelpeters.be/virtualenv-venv-choose-python-version/

#3

Thanks, stuartiannaylor.
I will try that method.

#4

PS seems I am doing same and sure I did it with venv before but whilst I was looking came across a much better tutorial

pyenv install 3.7.9 makes it super easy to install other python versions
it does miss

pyenv global 3.7.9

curl https://pyenv.run | bash is prob even easier

but install your version
swap by the global command
create venv upgrade pip & setuptools
add all your modules in the env and run from there

#5

Thank you for the additional info.

I already built the environment on Ubuntu 18.04 with Python 3.6.9.
Once I had a trouble on installing onnxruntime==1.6.0 due to a bit old version of pip. Now I got the environment of python3 with “from rknn.api import RKNN”.
I’m looking forward to using this tool from now on.
Thanks, again.

#6

Yeah it drives me nuts when custom whls are only avail for a certain python version and after did stupid things like installing another whole os image with correct python, but I just found pyenv and I am an instant convert :slight_smile:

Is simple but just pyenv specific

#7

I will try that method near future.
Thanx!