Hi,
We can setup dlib with python3 successfully.
...
Installed /usr/local/lib/python3.6/dist-packages/dlib-19.17.0-py3.6-linux-aarch64.egg
Processing dependencies for dlib==19.17.0
Finished processing dependencies for dlib==19.17.0
Here is our steps for your reference:
1. Setup device with JetPack4.3.
2. Build dlib from source.
$ wget http://dlib.net/files/dlib-19.17.tar.bz2
$ tar jxvf dlib-19.17.tar.bz2
cd dlib-19.17/
mkdir build
cd build/
cmake ..
cmake --build .
$ cd ../
$ sudo python3 setup.py install
Thanks.