Open terminal in current or selected folder in Nautilus file manager. Supports locales - please add your transation(s) if you want.

open-terminal.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

# NOTE: This is based on 'open-terminal.py' example originally written by Martin Enlund. My version is a bit more comprehensive.
#       - Locales (please feel free to add more)
#       - Tries to start the default terminal application in multiple different ways (all i could think of at the moment, please add more [self.executables])
#       - Display different label depending on what is selected.
#         Background and file has the same label, and directory has its own.
#
# URLs: https://github.com/iwconfig
#       https://www.apt-browse.org/browse/ubuntu/trusty/universe/i386/python-nautilus/1.1-4/file/usr/share/doc/python-nautilus/examples/open-terminal.py
#
# INSTALL: Save this file in ~/.local/share/nautilus-python/extensions

import os
import urllib
import locale
from gi.repository import Nautilus, GObject

class OpenTerminalExtension(Nautilus.MenuProvider, GObject.GObject):
    def __init__(self):
        self.locales = { 'en_*':  ('english',
                                    ['Open in terminal','Open terminal in'],
                                    ['Open terminal here', 'Open terminal in current directory']),
                         'sv_SE': ('swedish',
                                    ['Öppna i terminalen', 'Öppna terminalen i'],
                                    ['Öppna terminalen här', 'Öppna terminalen i den nuvarande sökvägen']) }
        self.locale = next(self.locales[lc] for lc in self.locales if lc.strip('*') in locale.getdefaultlocale()[0])
        self.executables = ['i3-sensible-terminal', 'exo-open --launch TerminalEmulator',
                            'x-terminal-emulator', 'gsettings get org.gnome.desktop.default-applications.terminal']

    def _open_terminal(self, file):
        if file.is_directory() or file.get_uri_scheme() != 'file':
            file = file.get_uri()
        else:
            file = file.get_parent_uri()
        filename = urllib.unquote(file[7:])
        os.chdir(filename)
        for x in self.executables:
            if os.system('{} &'.format(x)) == 0:
                break


    def menu_activate_cb(self, menu, file):
        self._open_terminal(file)

    def menu_background_activate_cb(self, menu, file):
        self._open_terminal(file)

    def file_folder_or_bg_menu(self, file, bg=False):
        if not bg and file.get_mime_type() == 'inode/directory':
            item = Nautilus.MenuItem(name='NautilusPython::openterminal_file_item',
                                     label=self.locale[1][0],
                                     tip='{0} {1}'.format(self.locale[1][1], file.get_name()))
            menu = self.menu_activate_cb
        else:
            item = Nautilus.MenuItem(name='NautilusPython::openterminal_item',
                                     label=self.locale[2][0],
                                     tip=self.locale[2][1])
            menu = self.menu_background_activate_cb
        item.connect('activate', menu, file)
        return item

    def get_file_items(self, window, file):
        if len(file) != 1:
            return
        item = self.file_folder_or_bg_menu(file[0])
        return item,

    def get_background_items(self, window, file):
        item = self.file_folder_or_bg_menu(file, bg=True)
        return item,