I don't want to completely junk up Becky's plugin thread with this particular issue, so I'll probably move this conversation into its own thread eventually. But I've found a couple suggestions that the user can try to fix this problem.
1. Change the Dock Settings (Most Common)
macOS remembers where applications are allowed to open. If your Python environment has been assigned to a specific Space, it will force a desktop switch every time you launch it.
- Launch your plugin so its app icon appears in the macOS Dock.
- Right-click (or two-finger tap) the app icon in the Dock.
- Hover over Options.
- Under the Assign To section, change the selection from This Desktop or Desktop on Display X to None.
macOS has a feature that automatically whips you across desktops if it thinks a window is already active elsewhere. You can disable this overarching setting:
- Open your Mac's System Settings.
- Navigate to Desktop & Dock in the left sidebar.
- Scroll down to the Mission Control section.
- Toggle off the setting: "When switching to an application, switch to a Space with open windows for the application".
This all came from google searching, so forgive me if the instructions don't actually match macOS's reality.