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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2017 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 operator
import sys
import unicodedata
import types
import subprocess
from glances.logger import logger
PY3 = sys.version_info[0] == 3
if PY3:
import queue
from configparser import ConfigParser, NoOptionError, NoSectionError
from statistics import mean
from xmlrpc.client import Fault, ProtocolError, ServerProxy, Transport, Server
from xmlrpc.server import SimpleXMLRPCRequestHandler, SimpleXMLRPCServer
from urllib.request import urlopen
from urllib.error import HTTPError, URLError
from urllib.parse import urlparse
input = input
range = range
map = map
text_type = str
binary_type = bytes
bool_type = bool
long = int
viewkeys = operator.methodcaller('keys')
viewvalues = operator.methodcaller('values')
viewitems = operator.methodcaller('items')
def to_ascii(s):
"""Convert the bytes string to a ASCII string
Usefull to remove accent (diacritics)"""
if isinstance(s, binary_type):
return s.decode()
return s.encode('ascii', 'ignore').decode()
def listitems(d):
return list(d.items())
def listkeys(d):
return list(d.keys())
def listvalues(d):
return list(d.values())
def iteritems(d):
return iter(d.items())
def iterkeys(d):
return iter(d.keys())
def itervalues(d):
return iter(d.values())
def u(s):
if isinstance(s, text_type):
return s
return s.decode('utf-8', 'replace')
def b(s):
if isinstance(s, binary_type):
return s
return s.encode('utf-8')
def nativestr(s):
if isinstance(s, text_type):
return s
return s.decode('utf-8', 'replace')
def system_exec(command):
"""Execute a system command and return the resul as a str"""
try:
res = subprocess.run(command.split(' '),
stdout=subprocess.PIPE).stdout.decode('utf-8')
except Exception as e:
logger.debug('Can not evaluate command {} ({})'.format(command, e))
res = ''
return res.rstrip()
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, Server
from urllib2 import urlopen, HTTPError, URLError
from urlparse import urlparse
input = raw_input
range = xrange
ConfigParser.read_file = ConfigParser.readfp
text_type = unicode
binary_type = str
bool_type = types.BooleanType
long = long
viewkeys = operator.methodcaller('viewkeys')
viewvalues = operator.methodcaller('viewvalues')
viewitems = operator.methodcaller('viewitems')
def mean(numbers):
return float(sum(numbers)) / max(len(numbers), 1)
def to_ascii(s):
"""Convert the unicode 's' to a ASCII string
Usefull to remove accent (diacritics)"""
if isinstance(s, binary_type):
return s
return unicodedata.normalize('NFKD', s).encode('ascii', 'ignore')
def listitems(d):
return d.items()
def listkeys(d):
return d.keys()
def listvalues(d):
return d.values()
def iteritems(d):
return d.iteritems()
def iterkeys(d):
return d.iterkeys()
def itervalues(d):
return d.itervalues()
def u(s):
if isinstance(s, text_type):
return s
return s.decode('utf-8')
def b(s):
if isinstance(s, binary_type):
return s
return s.encode('utf-8', 'replace')
def nativestr(s):
if isinstance(s, binary_type):
return s
return s.encode('utf-8', 'replace')
def system_exec(command):
"""Execute a system command and return the resul as a str"""
try:
res = subprocess.check_output(command.split(' '))
except Exception as e:
logger.debug('Can not execute command {} ({})'.format(command, e))
res = ''
return res.rstrip()
# Globals functions for both Python 2 and 3
def subsample(data, sampling):
"""Compute a simple mean subsampling.
Data should be a list of numerical itervalues
Return a subsampled list of sampling lenght
"""
if len(data) <= sampling:
return data
sampling_length = int(round(len(data) / float(sampling)))
return [mean(data[s * sampling_length:(s + 1) * sampling_length]) for s in range(0, sampling)]
def time_serie_subsample(data, sampling):
"""Compute a simple mean subsampling.
Data should be a list of set (time, value)
Return a subsampled list of sampling lenght
"""
if len(data) <= sampling:
return data
t = [t[0] for t in data]
v = [t[1] for t in data]
sampling_length = int(round(len(data) / float(sampling)))
t_subsampled = [t[s * sampling_length:(s + 1) * sampling_length][0] for s in range(0, sampling)]
v_subsampled = [mean(v[s * sampling_length:(s + 1) * sampling_length]) for s in range(0, sampling)]
return list(zip(t_subsampled, v_subsampled))
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