Get root path to pass to the LSP servers.

        This can be the current project path or the output of
        getcwd_or_home (except for Python, see below).

def get_root_path(self, language):
        """
        Get root path to pass to the LSP servers.

        This can be the current project path or the output of
        getcwd_or_home (except for Python, see below).
        """
        path = None

        # Get path of the current project
        if self.main and self.main.projects:
            path = self.main.projects.get_active_project_path()

        # If there's no project, use the output of getcwd_or_home.
        if not path:
            # We can't use getcwd_or_home for Python because if it
            # returns home and you have a lot of Python files on it
            # then computing Rope completions takes a long time
            # and blocks the PyLS server.
            # Instead we use an empty directory inside our config one,
            # just like we did for Rope in Spyder 3.
            if language == 'python':
                path = get_conf_path('lsp_root_path')
                if not osp.exists(path):
                    os.mkdir(path)
            else:
                path = getcwd_or_home()

        return path