Mercurial > libervia-backend

annotate sat/tools/common/dynamic_import.py @ 3118:02492db1ce39

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quick frontend (app): call `getReady` once connected to bridge: namespaces and encryption plugins are only retrieved once backend is ready, else they may not yet be available (can happen notably when the backend is start at the same time as the frontend, e.g. on Android).
author Goffi <goffi@goffi.org>
date Sat, 25 Jan 2020 21:08:26 +0100
parents ab2696e34d29
children 9d0df638c8b4
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ab2696e34d29 Python 3 port:
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1 #!/usr/bin/env python3
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2 # -*- coding: utf-8 -*-
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3
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4 # SàT: a XMPP
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 """ tools dynamic import """
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21
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22 from importlib import import_module
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23
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24
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25 def bridge(name, module_path="sat.bridge"):
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26 """Import bridge module
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27
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28 @param module_path(str): path of the module to import
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29 @param name(str): name of the bridge to import (e.g.: dbus)
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30 @return (module, None): imported module or None if nothing is found
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31 """
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32 try:
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33 bridge_module = import_module(module_path + "." + name)
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34 except ImportError:
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35 try:
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36 bridge_module = import_module(module_path + "." + name + "_bridge")
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37 except ImportError:
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38 bridge_module = None
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39 return bridge_module