Tensorrt python package not found

I have installed Jetpack 4.6.1 on xavier agx from sdk manager. Installation summary showed tensorrt was installed. Came with python 3.6.9. However when I import tensorrt, module is not found.

python3 -m pip install nvidia-pyindex
python3 -m pip install --upgrade nvidia-tensorrt

is throwing the error mentioned in the tensorrt installation guide.

##################################################################
The package you are trying to install is only a placeholder project on PyPI.org repository. This package is hosted on NVIDIA Python Package Index. This package can be installed as:
$ pip install nvidia-pyindex
$ pip install nvidia-tensorrt
##################################################################

I tried to install python binding as detailed in the below comment.
python 3.9 binding tensorrt

 python3.9 -c "import tensorrt"

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/cgblr/.local/lib/python3.9/site-packages/tensorrt/__init__.py", line 36, in <module>
    from .tensorrt import *
ModuleNotFoundError: No module named 'tensorrt.tensorrt'

Other solutions to similar problem mentioned in the forum didn’t help me.

I would like to know what is the correct way of installing tensort package for python.

Thank you.

Environment

System : Jetson Xavier AGX
Jetpack Version : 4.6.1
TensorRT Version : arm64 8.2.1-1+cuda10.2
CUDA Version : 10.2
CUDNN Version :
Operating System + Version : Ubuntu 18.04
Python Version (if applicable) : 3.6.9

Hi,

We only have the prebuilt package for the default python 3.6.
For other versions, please compile them from the source.

Below are the detailed steps for your reference:

Thanks.