1 ModuleNotFoundError: No module named 'tempest'##
I have followed the instructions to edit /etc/environment and include the following line PYTHONPATH=$PYTHONPATH:"/usr/local/lib/python3.8/dist-packages/gnuradio" (I have checked the file path of the tempest module) to set up the path of the "tempest" module. Still, it also reports the error "ModuleNotFoundError: No module named 'tempest'."
Also, I try to run the following command "sudo cp -r /usr/local/lib/python3.8/dist-packages/gnuradio/tempest /usr/local/lib/python3.8/dist-packages/gnuradio" and edit /etc/environment to include the following line PYTHONPATH=$PYTHONPATH:"/usr/local/lib/python3.8/dist-packages'', the module 'tempest' could be found, but there is a new strange error.
"""
import tempest
File "/usr/local/lib/python3.8/dist-packages/tempest/init.py", line 18, in
from .tempest_python import *
ImportError: generic_type: type "Hsync" is already registered!
"""
2 Two Block Errors
Also, there is a minor error in the following 2 blocks in the deep-tempest_example.grc. I just disabled these two blocks and would like to know how to resolve the error.

Many thanks for your time and help.
1 ModuleNotFoundError: No module named 'tempest'##
I have followed the instructions to edit /etc/environment and include the following line PYTHONPATH=$PYTHONPATH:"/usr/local/lib/python3.8/dist-packages/gnuradio" (I have checked the file path of the tempest module) to set up the path of the "tempest" module. Still, it also reports the error "ModuleNotFoundError: No module named 'tempest'."
Also, I try to run the following command "sudo cp -r /usr/local/lib/python3.8/dist-packages/gnuradio/tempest /usr/local/lib/python3.8/dist-packages/gnuradio" and edit /etc/environment to include the following line PYTHONPATH=$PYTHONPATH:"/usr/local/lib/python3.8/dist-packages'', the module 'tempest' could be found, but there is a new strange error.
"""
import tempest
File "/usr/local/lib/python3.8/dist-packages/tempest/init.py", line 18, in
from .tempest_python import *
ImportError: generic_type: type "Hsync" is already registered!
"""
2 Two Block Errors
Also, there is a minor error in the following 2 blocks in the deep-tempest_example.grc. I just disabled these two blocks and would like to know how to resolve the error.
Many thanks for your time and help.