This is a simple plugin that allows modifying trackers of a torrent automatically using regular expressions. Trackers are changed when the plugin is enabled, when a torrent is resumed and when a torrent is added. If the regex does not match, the tracker URLs are not affected. The sub method from the re module is used.

This example shows how to edit the tracker from apollo.rip. A simple regex catches the domain and replaces it with another one. The "regex" is what should be matched, and the "repl" is what replaces it. Backreferences can be used in "repl".

~/.config/deluge/autotrackeredit.json

[
    {
        "regex": "^https?://mars.apollo.rip/",
        "repl": "http://apollo.rip:2095/"
    }
]

In the directory, use make. Upload the Python .egg file to your Deluge core via whatever UI you use.