admin.py

    def get_urls(self):
        password_urlpatterns = patterns(
            '',
            url(
                r'^(.+?)/password/$',
                self.admin_site.admin_view(self.user_change_password)
            )
        )

        base_urlpatterns = super(UserAdmin, self).get_urls()

        for urlpattern in base_urlpatterns:
            if '/password/' in urlpattern._regex:
                password_pattern = urlpattern
                break

        base_urlpatterns.remove(password_pattern)

        urlpatterns = password_urlpatterns + base_urlpatterns

        return urlpatterns