nginx. How to fix an error with adding a repository (error with SoftwareProperties)?

Question

Python

Ubuntu 10.10
Installed nginx/0.7.67, I want to update it to the latest version.
I do according to the manual ( usefulmix.com/install-upgrade-to-latest-nginx-with... )
And stuck in an error:
Traceback (most recent call last):
File "/usr/bin/add-apt-repository", line 8, in
from softwareproperties.SoftwareProperties import SoftwareProperties
ImportError: No module named softwareproperties.SoftwareProperties
python-software-properties installed
If sudo apt-get install software-properties-common , then response: E: Could not find package software-properties-common

Answer 1

> Ubuntu 10.10
Seems to start updating from here.
But in general, in that manual you need to read paragraph 1.4.2

Answer 2

Ubuntu 10.10 ended support on April 10, 2012 https://ru.wikipedia.org/wiki/Ubuntu
repositories are not available
to install nginx, it is better to use the instructions at nginx.org/en/linux_packages.html