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__

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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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# This file is part of Beremiz, a Integrated Development Environment for

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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

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#

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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

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#

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# See COPYING file for copyrights details.

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#

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# This program is free software; you can redistribute it and/or

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# modify it under the terms of the GNU General Public License

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# as published by the Free Software Foundation; either version 2

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# of the License, or (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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#

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# You should have received a copy of the GNU General Public License

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# along with this program; if not, write to the Free Software

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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from __future__ import absolute_import

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import wx

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from plcopen.structures import TestIdentifier, IEC_KEYWORDS

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# -------------------------------------------------------------------------------

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#                          Edit Step Name Dialog

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# -------------------------------------------------------------------------------

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class SFCStepNameDialog(wx.TextEntryDialog):

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    def __init__(self, parent, message, caption=_("Please enter text"), defaultValue="",

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                 style=wx.OK | wx.CANCEL | wx.CENTRE, pos=wx.DefaultPosition):

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        wx.TextEntryDialog.__init__(self, parent, message, caption, defaultValue, style, pos)

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        self.PouNames = []

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        self.Variables = []

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        self.StepNames = []

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        self.Bind(wx.EVT_BUTTON, self.OnOK,

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                  self.GetSizer().GetItem(2).GetSizer().GetItem(1).GetSizer().GetAffirmativeButton())

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    def OnOK(self, event):

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        message = None

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        step_name = self.GetSizer().GetItem(1).GetWindow().GetValue()

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        if step_name == "":

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            message = _("You must type a name!")

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        elif not TestIdentifier(step_name):

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            message = _("\"%s\" is not a valid identifier!") % step_name

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        elif step_name.upper() in IEC_KEYWORDS:

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            message = _("\"%s\" is a keyword. It can't be used!") % step_name

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        elif step_name.upper() in self.PouNames:

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            message = _("A POU named \"%s\" already exists!") % step_name

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        elif step_name.upper() in self.Variables:

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            message = _("A variable with \"%s\" as name already exists in this pou!") % step_name

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        elif step_name.upper() in self.StepNames:

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            message = _("\"%s\" step already exists!") % step_name

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        if message is not None:

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            dialog = wx.MessageDialog(self, message, _("Error"), wx.OK | wx.ICON_ERROR)

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            dialog.ShowModal()

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            dialog.Destroy()

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        else:

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            self.EndModal(wx.ID_OK)

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        event.Skip()

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    def SetPouNames(self, pou_names):

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        self.PouNames = [pou_name.upper() for pou_name in pou_names]

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    def SetVariables(self, variables):

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        self.Variables = [var.Name.upper() for var in variables]

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    def SetStepNames(self, step_names):

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        self.StepNames = [step_name.upper() for step_name in step_names]