GUIClient doesn't open url under Linux

[Inky19]

When calling GUIClient(path=gui_path), the error Could not open URL is raised and nothing opens.
This is due to the implementation of the open_file() method in gui_client.py :

@staticmethod
def open_file(url):
    try:
        os.startfile(url)
    except AttributeError:
        try:
            subprocess.call(["open", url])
        except Exception:
            logger.debug("Could not open URL")

• os.startfile(url) fails because it is only available on Windows (source)
• the subprocess also fails because open is a command reserved for MacOS, and is not valid under Linux.

A simple solution would be to use xdg-open when Linux is detected, which seems to be the equivalent (source). This worked for me at least.

A library to help with os.startfile on different OS seems to exist (universal-startfile), but I know nothing about its reliability.

Environment used:

• OS: Manjaro Linux (kernel 6.6)
• Python: 3.11.6