How to fix 'python3-pip' installation error [duplicate]

I'm using wsl2 - Ubuntu 24.04. when try to install sudo apt install python3-pip it is trowing error

Package 'python3-pip' has no installation candidate.

Try adding external repo. But no luck still missing pip on Ubuntu.I am using python 3.12.3.

Which repo python3-pip need to found out ?

after using apt install python3-pip

Response:

`E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied)E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?

Note:

1. I am a root user.
2. Try adding extrnal repo. Pip is still missing. Need some time to dig into it. Will post the exact errors.

** Search out other post, this problem seems to a unique one. And not relevant to other solutions.