view sat/tools/common/dynamic_import.py @ 2768:cb34af35af6f

core (disco): client.disco.requestInfo failure are re-raised: so far, requestInfo failure where logged as a warning, and an empty disco was returned. This prevented the requesting entity to know about the error, so now the error is logged and re-raised. CancelError are converted to TimeoutError (requestInfo is only cancelled on timeout). An empty disco is still cached in case of failure, to avoid re-waiting for the entity on next request.
author Goffi <goffi@goffi.org>
date Fri, 11 Jan 2019 19:48:20 +0100
parents 56f94936df1e
children 003b8b4b56a7
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# SàT: a XMPP
# Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

""" tools dynamic import """

from importlib import import_module


def bridge(name, module_path="sat.bridge"):
    """Import bridge module

    @param module_path(str): path of the module to import
    @param name(str): name of the bridge to import (e.g.: dbus)
    @return (module, None): imported module or None if nothing is found
    """
    try:
        bridge_module = import_module(module_path + "." + name)
    except ImportError:
        try:
            bridge_module = import_module(module_path + "." + name + "_bridge")
        except ImportError:
            bridge_module = None
    return bridge_module