Import style mismatch between pip-installed and source-installed versions

[shirgur]

Describe the bug

The following is a potential “bug”. For “Advanced installation” - link, the package is packed as if we work in the repo directory tree. Meaning:

• The repo contains several packages under source/
• When following the installation from source - link, each package can be imported nicely like import isaaclab.assets for example
• But when following the advanced installation the import style is different, so for the above example we get import isaaclab.source.isaaclab.assets

Steps to reproduce

Follow the “Advanced installation” - link

System Info

Describe the characteristic of your environment:

• Commit: main

• Isaac Sim Version: 4.5.0

• OS: Ubuntu 22.04

• [x] I have checked that there is no similar issue in the repo (required)

• [x] I have checked that the issue is not in running Isaac Sim itself and is related to the repo

Acceptance Criteria

Add the criteria for which this task is considered done. If not known at issue creation time, you can add this once the issue is assigned.

• [ ] Remove isaaclab.source prefix when installing using pip