Add compat

Python 2/3 compatibility shims.

glances/core/compat.py

+# -*- coding: utf-8 -*-
+#
+# This file is part of Glances.
+#
+# Copyright (C) 2015 Nicolargo <nicolas@nicolargo.com>
+#
+# Glances is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Glances 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# flake8: noqa
+# pylint: skip-file
+"""Python 2/3 compatibility shims."""
+
+import sys
+
+PY3 = sys.version_info[0] == 3
+
+if PY3:
+    import queue
+    from configparser import ConfigParser, NoOptionError, NoSectionError
+    from xmlrpc.client import Fault, ProtocolError, ServerProxy, Transport
+    from xmlrpc.server import SimpleXMLRPCRequestHandler, SimpleXMLRPCServer
+
+    input = input
+    range = range
+    map = map
+
+    text_type = str
+    binary_type = bytes
+
+    def iteritems(d):
+        return iter(d.items())
+
+    def iterkeys(d):
+        return iter(d.keys())
+
+    def itervalues(d):
+        return iter(d.values())
+
+    def u(s):
+        return s
+
+    def b(s):
+        if isinstance(s, binary_type):
+            return s
+        return s.encode('latin-1')
+
+    def nativestr(s):
+        if isinstance(s, text_type):
+            return s
+        return s.decode('utf-8', 'replace')
+else:
+    import Queue as queue
+    from itertools import imap as map
+    from ConfigParser import SafeConfigParser as ConfigParser, NoOptionError, NoSectionError
+    from SimpleXMLRPCServer import SimpleXMLRPCRequestHandler, SimpleXMLRPCServer
+    from xmlrpclib import Fault, ProtocolError, ServerProxy, Transport
+
+    input = raw_input
+    range = xrange
+    ConfigParser.read_file = ConfigParser.readfp
+
+    text_type = unicode
+    binary_type = str
+
+    def iteritems(d):
+        return d.iteritems()
+
+    def iterkeys(d):
+        return d.iterkeys()
+
+    def itervalues(d):
+        return d.itervalues()
+
+    def u(s):
+        return s.decode('utf-8')
+
+    def b(s):
+        return s
+
+    def nativestr(s):
+        if isinstance(s, binary_type):
+            return s
+        return s.encode('utf-8', 'replace')
+
+try:
+    # Python 2.6
+    from logutils.dictconfig import dictConfig
+except ImportError:
+    from logging.config import dictConfig