Fix various pylint and pep8 errors

Check basic code-style problems for PEP-8
pep8 version: 2.4.0
./connectors/PYRO/__init__.py:57:43: E261 at least two spaces before inline comment
./connectors/SchemeEditor.py:29:21: E128 continuation line under-indented for visual indent
./controls/IDBrowser.py:101:23: E127 continuation line over-indented for visual indent
./controls/IDBrowser.py:102:23: E127 continuation line over-indented for visual indent

Check for problems using pylint ...
No config file found, using default configuration
pylint 1.9.4,
astroid 1.6.5
Python 2.7.16rc1 (default, Feb 18 2019, 11:05:09)
[GCC 8.2.0]
Use multiple threads for pylint
Using config file /home/developer/WorkData/PLC/beremiz/beremiz/.pylint
************* Module connectors.PYRO_dialog
connectors/PYRO_dialog.py:9: [W0611(unused-import), ] Unused import wx
************* Module connectors
connectors/__init__.py:32: [W1652(deprecated-types-field), ] Accessing a deprecated fields on the types module
connectors/__init__.py:32: [C0411(wrong-import-order), ] standard import "from types import ClassType" should be placed before "from connectors.ConnectorBase import ConnectorBase"
************* Module connectors.PYRO.PSK_Adapter
connectors/PYRO/PSK_Adapter.py:7: [C0411(wrong-import-order), ] standard import "import ssl" should be placed before "import sslpsk"
************* Module connectors.SchemeEditor
connectors/SchemeEditor.py:29: [C0330(bad-continuation), ] Wrong continued indentation (add 1 space).
wx.ALIGN_CENTER_VERTICAL),
^|
connectors/SchemeEditor.py:42: [W0631(undefined-loop-variable), SchemeEditor.__init__] Using possibly undefined loop variable 'tag'
************* Module runtime.WampClient
runtime/WampClient.py:138: [W1612(unicode-builtin), WampSession.onJoin] unicode built-in referenced
runtime/WampClient.py:154: [W1612(unicode-builtin), WampSession.publishWithOwnID] unicode built-in referenced
runtime/WampClient.py:346: [W1612(unicode-builtin), PublishEvent] unicode built-in referenced
runtime/WampClient.py:351: [W1612(unicode-builtin), PublishEventWithOwnID] unicode built-in referenced
runtime/WampClient.py:31: [W0611(unused-import), ] Unused str imported from builtins as text
************* Module runtime.PLCObject
runtime/PLCObject.py:35: [W1648(bad-python3-import), ] Module moved in Python 3
runtime/PLCObject.py:35: [C0411(wrong-import-order), ] standard import "import md5" should be placed before "from six.moves import xrange"
runtime/PLCObject.py:36: [C0411(wrong-import-order), ] standard import "from tempfile import mkstemp" should be placed before "from six.moves import xrange"
runtime/PLCObject.py:37: [C0411(wrong-import-order), ] standard import "import shutil" should be placed before "from six.moves import xrange"
runtime/PLCObject.py:38: [C0411(wrong-import-order), ] standard import "from functools import wraps, partial" should be placed before "from six.moves import xrange"
************* Module runtime.Worker
runtime/Worker.py:12: [W1648(bad-python3-import), ] Module moved in Python 3
************* Module runtime.spawn_subprocess
runtime/spawn_subprocess.py:125: [C0325(superfluous-parens), ] Unnecessary parens after 'print' keyword
runtime/spawn_subprocess.py:130: [C0325(superfluous-parens), ] Unnecessary parens after 'print' keyword
runtime/spawn_subprocess.py:125: [E1601(print-statement), ] print statement used
runtime/spawn_subprocess.py:130: [E1601(print-statement), ] print statement used
************* Module controls.IDBrowser
controls/IDBrowser.py:101: [C0330(bad-continuation), ] Wrong continued indentation (remove 5 spaces).
if self.isManager
| ^
controls/IDBrowser.py:102: [C0330(bad-continuation), ] Wrong continued indentation (remove 5 spaces).
else dv.DATAVIEW_CELL_INERT),
| ^
************* Module Beremiz_service
Beremiz_service.py:34: [W0611(unused-import), ] Unused import __builtin__

#!/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) 2007: Edouard TISSERANT and Laurent BESSARD
#
# 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
import os
import subprocess
import wx


def get_inkscape_path():
    """ Return the Inkscape path """
    from six.moves import winreg
    try:
        svgexepath = winreg.QueryValue(winreg.HKEY_LOCAL_MACHINE,
                                       'Software\\Classes\\svgfile\\shell\\Inkscape\\command')
    except OSError:
        svgexepath = winreg.QueryValue(winreg.HKEY_LOCAL_MACHINE,
                                       'Software\\Classes\\inkscape.svg\\shell\\open\\command')
    svgexepath = svgexepath.replace('"%1"', '')
    return svgexepath.replace('"', '')


def open_win_svg(svgexepath, svgfile):
    """ Open Inkscape on Windows platform """
    popenargs = [svgexepath]
    if svgfile is not None:
        popenargs.append(svgfile)
    subprocess.Popen(popenargs)


def open_lin_svg(svgexepath, svgfile):
    """ Open Inkscape on Linux platform """
    if os.path.isfile("/usr/bin/inkscape"):
        os.system("%s %s &" % (svgexepath, svgfile))


def open_svg(svgfile):
    """ Generic function to open SVG file """
    if wx.Platform == '__WXMSW__':
        try:
            open_win_svg(get_inkscape_path(), svgfile)
        except Exception:
            wx.MessageBox("Inkscape is not found or installed !")
            return None
    else:
        svgexepath = os.path.join("/usr/bin", "inkscape")
        if os.path.isfile(svgexepath):
            open_lin_svg(svgexepath, svgfile)
        else:
            wx.MessageBox("Inkscape is not found or installed !")
            return None