Pip3 on Jetson nano is not working correctly

When i install pip3 (python 3.6) and try this command to install pyrealsense2: pip3 install pyrealsense2, this notify displayed:

Defaulting to user installation because normal site-packages is not writeable

I tried with another library like openpyxl, numpy etc it still install but this notice still display.
So how can i fix it?
Many thanks.

That’s not an error. Pip on Ubuntu (and Linux for Tegra, by extension) will default to a user installation if it cannot write to the system packages, which is good. It just means you don’t have to explicitly do a pip --user install anymore. On most other distros this is not the default behavior, but IMO it’s a more reasonable default.

Oh, I understood. Many thanks.