A nautilus extension to open kitty in the current directory, instead of gnome-terminal.

open-kitty.py

# placed in ~/.local/share/nautilus-python/extensions/open-kitty.py
# you will need the package nautilus-python on fedora, or python-nautilus on ubuntu...
# french version
# translate and enjoy

import os
try:
    from urllib import unquote
except ImportError:
    from urllib.parse import unquote
import gi
gi.require_version('GConf', '2.0')
from gi.repository import Nautilus, GObject, GConf


class OpenTerminalExtension(Nautilus.MenuProvider, GObject.GObject):
    def __init__(self):
        self.client = GConf.Client.get_default()
        
    def _open_terminal(self, file):
        filename = unquote(file.get_uri()[7:])

        os.chdir(filename)
        os.system('kitty --detach')
        
    def menu_activate_cb(self, menu, file):
        self._open_terminal(file)
        
    def menu_background_activate_cb(self, menu, file): 
        self._open_terminal(file)
       
    def get_file_items(self, window, files):
        if len(files) != 1:
            return
        
        file = files[0]
        if not file.is_directory() or file.get_uri_scheme() != 'file':
            return
      
        item = Nautilus.MenuItem(name='KittyTerminal::open_terminal_for_dir',
                                 # TIPs: translate sentences here...
                                 label='Ouvrir dans un terminal' , # 'Open in a terminal'
                                 tip='Ouvrir un terminal dans %s' % file.get_name()) # 'Open a terminal in %s'
        item.connect('activate', self.menu_activate_cb, file)
        return item,

    def get_background_items(self, window, file):
        item = Nautilus.MenuItem(name='KittyTerminal::open_terminal_current_dir',
                                 # TIPs: ...and here!
                                 label='Ouvrir un terminal' , # 'Open a terminal'
                                 tip='Ouvrir un terminal dans %s' % file.get_name()) # 'Open a terminal in %s'
        item.connect('activate', self.menu_background_activate_cb, file)
        return item,

Thanks. Works like a charm. 👍
However, I would like to suggest to place the script in: ~/.local/share/nautilus-python/extensions/open-kitty.py
On Ubuntu/Debian the package python3-nautilus is needed. Other distributions might refer to it as nautilus-python, like explained here.

Yeah, I actually placed it in user's local dir, but did not update it here :) thanks a lot