Operating system: GNU/Linux, Manjaro KDE 18.0.1
Graphics card: Nvidia GTX 750Ti
2.80, eb55990777a, blender2.8, 2019-01-06, as found on the splash screen
**Short description of error**
Magic UV plugin can't be activated.
**Exact steps for others to reproduce the error**
- Launch Blender
- Try to enable Magic UV plugin, but if fails trying to find user_preferences.
Here's a patch for __init__.py to solve it.