This is a Nautilus Extension which opens a VSCode window with the current folder as parameter.

open_vscode_here.py

import os
import gi
from urllib import unquote
gi.require_version('Nautilus', '3.0')
from gi.repository import Nautilus, GObject


class OpenVSCodeHere(GObject.GObject, Nautilus.MenuProvider):

    def __init__(self):
        '''
        This is a very simple module, does not require a constructor.
        '''
        pass

    def _open_vscode_here(self, path):
        '''
        This function is connected with the menu items and runs VSCode
        passing the selected folder as parameter.
        '''
        filename = unquote(path.get_uri()[7:])
        os.chdir(filename)
        os.system('code .')

    def menu_activate_cb(self, menu, file):
        '''
        This is just a wrapper to call the execution function.
        '''
        self._open_vscode_here(file)

    def menu_background_activate_cb(self, menu, file):
        '''
        This is just a wrapper to call the execution function.
        '''
        self._open_vscode_here(file)

    def get_file_items(self, window, files):
        '''
        This function is called when one or more file are selected
        in Nautilus and the right button is pressed. The files parameter
        contains a list with the selected files.
        '''
        file = files[0]
        menu_item = Nautilus.MenuItem(
            name='OpenVSCodeHere::OpenFiles',
            label='Open VSCode here',
            tip='Launch VSCode using this folder as project.')
        menu_item.connect('activate', self.menu_activate_cb, file)
        return menu_item,

    def get_background_items(self, window, file):
        '''
        This function is called when no files are selected
        in Nautilus and the right button is pressed. The file parameter
        contains the folder.
        '''
        menu_item = Nautilus.MenuItem(
            name='OpenVSCodeHere::OpenFolder',
            label='Open VSCode here',
            tip='Launch VSCode using this folder as project.')
        menu_item.connect('activate', self.menu_background_activate_cb, file)
        return menu_item,