How to launch elevated privileges window?

[tmccabe]

When I uninstall some snaps using the Snap Store, a window pops up telling me that I need to enter a password to uninstall. The same thing happens when installing some snaps. Installing Notepad++ on Ubuntu via the Snap Store is one example. I am assuming this a system permissions popup rather than a custom GUI actually created by the Snap Store folks.

My own python snap needs root privileges at one point in its setup process, while running in a GUI as the user. Examples that I find online for requesting root privileges in python inevitably only work when running in the terminal, which is not what my snap is doing.

How do I prompt the user to enter their root password (in a non-scary way) from my python GUI exactly like the Snap Store does on install/uninstall?

[tmccabe]

I found my solution on Stack Overflow! Hope this helps someone else…

import os
os.system("pkexec ls -l")

https://stackoverflow.com/questions/60741131/how-to-launch-linux-elevated-privileges-window-from-python/60741776#60741776

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EDIT: I take it back. Apparently, pkexec is not allowed.

Execute a subprocess as the administrative super user

My app runs normally in user space but I have a special use case (changing the graphic card power limit) that requires root permission. If I run directly on the host I can just use pkexec to run a python script (part of my app source) as root. Is it possible to do the same from strict confinement (executing as root a script part of the snap)? If not, is there some other way to execute something as root? (this is a similar question, the difference is that here I want to run as root a script par…