version.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 24 Aug 2018 13:41:43 +0300
changeset 2297 96ca6b056c55
parent 2239 813792f22527
child 2351 467f6daff4e9
permissions -rw-r--r--
Proper fix for error 'object has no attribute 'getSlave' in EtherCAT extension

traceback:
File "/home/developer/WorkData/PLC/beremiz/beremiz/IDEFrame.py", line 1433, in OnPouSelectedChanged
window.RefreshView()
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/ConfigEditor.py", line 837, in RefreshView
self.RefreshProcessVariables()
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/ConfigEditor.py", line 886, in RefreshProcessVariables
slaves = self.Controler.GetSlaves(**self.CurrentNodesFilter)
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/EthercatMaster.py", line 341, in GetSlaves
for slave in self.Config.getConfig().getSlave():
<type 'exceptions.AttributeError'>:_'lxml.etree._Element'_object_has_no_attribute_'getSlave'

Steps to reproduce problem:

- Add new EtherCAT master
- Add new EthercatNode to the master
- double click on


Revert commit "Dirty fix for error '_object_has_no_attribute_'getSlave' in EtherCAT extension"
[a3ac46366b86a0b237dac93be6b2281ac70b98a8].

The problem was that XML elements (proxy object) in some cases were created using custom XML
classes constructors and lxml.etree.Element() call and live python
patching. This causes that lxml backend doesn't know that custom python class
should be used for these XML elements.
Proxy object can be move/deleted and recreated by lxml
backend at any point in time or this can be done in python by copy/deepcopy operations.
If this happens, then newly created
proxy elements are using default class lxml.etree._Element. And all
custom functionality is lost.

All created XML elements should be always created through corresponding
parser and class lookup callback done by lxml backend.
It's described in more details in lxml documentation:
https://lxml.de/element_classes.html
#!/usr/bin/env python
# -*- coding: utf-8 -*-

# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2016: Andrey Skvortsov
#
# See COPYING file for copyrights details.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.


from __future__ import absolute_import
from __future__ import unicode_literals

import subprocess
import os

import util.paths as paths


def GetCommunityHelpMsg():
    return _(
        "The best place to ask questions about Beremiz/PLCOpenEditor\n"
        "is project's mailing list: beremiz-devel@lists.sourceforge.net\n"
        "\n"
        "This is the main community support channel.\n"
        "For posting it is required to be subscribed to the mailing list.\n"
        "\n"
        "You can subscribe to the list here:\n"
        "https://lists.sourceforge.net/lists/listinfo/beremiz-devel"
    )


def GetAppRevision():
    rev = None
    app_dir = paths.AbsDir(__file__)
    try:
        pipe = subprocess.Popen(
            ["hg", "id", "-i"],
            stdout=subprocess.PIPE,
            cwd=app_dir
        )
        rev = pipe.communicate()[0]
        if pipe.returncode != 0:
            rev = None
    except Exception:
        pass

    # if this is not mercurial repository
    # try to read revision from file
    if rev is None:
        try:
            f = open(os.path.join(app_dir, "revision"))
            rev = f.readline()
        except Exception:
            pass
    return rev


def GetAboutDialogInfo():
    import wx
    info = wx.AboutDialogInfo()

    info.Name = "Beremiz"
    info.Version = app_version

    info.Copyright = ""
    info.Copyright += "(C) 2016-2017 Andrey Skvortsov\n"
    info.Copyright += "(C) 2008-2015 Eduard Tisserant\n"
    info.Copyright += "(C) 2008-2015 Laurent Bessard"

    info.WebSite = ("http://beremiz.org", "beremiz.org")

    info.Description = _("Open Source framework for automation, "
                         "implemented IEC 61131 IDE with constantly growing set of extensions "
                         "and flexible PLC runtime.")

    info.Developers = (
        "Andrey Skvortsov <andrej.skvortzov@gmail.com>",
        "Sergey Surkov <surkov.sv@summatechnology.ru>",
        "Edouard Tisserant <edouard.tisserant@gmail.com>",
        "Laurent Bessard <laurent.bessard@gmail.com>")

    info.License = (
        '\n This program is free software; you can redistribute it and/or\n'
        ' modify it under the terms of the GNU General Public License\n'
        ' as published by the Free Software Foundation; either version 2\n'
        ' of the License, or (at your option) any later version.\n'
        '\n'
        ' This program is distributed in the hope that it will be useful,\n'
        ' but WITHOUT ANY WARRANTY; without even the implied warranty of\n'
        ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n'
        ' GNU General Public License below for more details.\n'
        '\n'
        '\n'
        '\n'
        ''
    )

    # read license file
    path = paths.AbsDir(__file__)
    license_path = os.path.join(path, "COPYING")
    if os.path.exists(license_path):
        with open(license_path) as f:
            info.License += f.read()

    info.Icon = wx.Icon(os.path.join(path, "images", "about_brz_logo.png"), wx.BITMAP_TYPE_PNG)

    info.Translators = (
        "Bengali (Bangladesh)",
        "  Adhir Dutta <likhon52@gmail.com>, 2017",
        "",

        "Chinese",
        "  Frank Guan <gpfrank@163.com>, 2017",
        "",

        "French",
        "  Fabien Marteau <mail@fabienm.eu>, 2017",
        "  Laurent Bessard <laurent.bessard@gmail.com>, 2008",
        "",

        "German",
        "  Andrey Skvortsov <andrej.skvortzov@gmail.com>, 2017",
        "  Mark Muzenhardt <mark.muzenhardt@gmail.com>, 2012",
        "",

        "Hungarian",
        "  Gábor Véninger <veninger.gabor@gmail.com>, 2017",
        "",

        "Italian",
        "  Luca Magnabosco <magnabosco.luca@gmail.com>, 2017",
        "  Manuele Conti <manuele.conti@sirius-es.it>, 2017",
        "",

        "Korean",
        "  Reinhard Lee <lij3105@gmail.com>, 2012",
        "",

        "Portuguese (Portugal)",
        "  Pedro Coimbra <pcoimbra310@gmail.com>, 2017",
        "",

        "Portuguese (Brazil)",
        "  Thiago Alves <thiagoralves@gmail.com>, 2017",
        "",

        "Russian",
        "  Andrey Skvortsov <andrej.skvortzov@gmail.com>, 2017",
        "",

        "Slovenian",
        "  Janez Pregelj <janezpregelj@gmail.com>, 2017",
        "",

        "Spanish",
        "  Marcial González de Armas <mgacod@gmail.com>, 2017",
        "  Carlos Guilarte <guilartec@gmail.com>, 2017",
        "",

    )
    return info


app_version = "1.2"
rev = GetAppRevision()
if rev is not None:
    app_version = app_version + "-" + rev.rstrip()