Qbittorrent search plugins broken on 25.05

After updating to 25.05, Qbittorrent search plugins no longer work (it says “plugin is not supported” for all of them). Apparently, Python 3.9 is not supported in NixOS anymore, but higher versions break the plugins. Is there any way to install the old version of Python, since the package was removed, or is Qbittorrent just going to stay broken?

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Why are the plugins 4 years out of date? They should be updated instead.

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Yes - since nixpkgs never throws anything away, you can, e.g. by pulling packages from multiple channels. That’s far from the neatest solution (and are you even sure you can make the plugins pick up the right python?), but I thouht I’d chime in with it just in case nobody offers a better one.

Never mind, I was using a higher version before the update (3.12). It also doesn’t work when I revert to the previous channel. I tried switching either python or qbittorrent or both back to 24.11, and my whole system. Behavior is still the same

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I figured it out. To fix it, delete .local/share/qbittorrent/nova3, then check for updates in search plugins menu

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I Have this issue. When I press “check for updates” initially I get a bunch of default search plugins, they seem to work, i can search with them. However when i add a custom search plugin, it shows up as enabled and i can filter with it like any other etc, but I don’t get any results when i search with it. I have installed updated .py files to my knowledge. I tried deleting the nova3 folder, which for me is in “/var/lib/qBittorrent/qBittorrent/data/nova3” on nixos, however it just makes all search plugins return no results.

Did you do something other than just deleting the nova3 folder and then pressing “check for updates”?