Remove six

Replace the following items with Python 3 style code.

- six.PY2
- six.add_metaclass
- six.string_types
- six.text_type
- six.moves
- six.StringIO
- six.wraps
- six.integer_types

Story: 2008305
Task: 41191

Change-Id: I68710421b69d4049c9e990451da491dc14251fb5

monasca_agent/collector/checks/services_checks.py

@@ -17,7 +17,7 @@ import threading
 
 import eventlet
 import multiprocessing
-from six.moves.queue import Queue
+from queue import Queue
 
 import monasca_agent.collector.checks
 

monasca_agent/collector/checks_d/apache.py

@@ -15,8 +15,7 @@
 
 import logging
 import socket
-
-from six.moves import urllib
+import urllib
 
 # project
 import monasca_agent.collector.checks as checks

monasca_agent/collector/checks_d/cadvisor_host.py

@@ -13,8 +13,8 @@
 
 import requests
 
-from six.moves.urllib.parse import urlparse
-from six.moves.urllib.parse import urlunparse
+from urllib.parse import urlparse
+from urllib.parse import urlunparse
 
 from monasca_agent.collector.checks import AgentCheck
 from monasca_agent.collector.checks import utils

monasca_agent/collector/checks_d/cert_check.py

@@ -15,7 +15,7 @@ from datetime import datetime
 import socket
 import ssl
 
-from six.moves.urllib.parse import urlparse
+from urllib.parse import urlparse
 
 from monasca_agent.collector.checks import AgentCheck
 

monasca_agent/collector/checks_d/couch.py

@@ -12,8 +12,7 @@
 # under the License.
 
 import json
-
-from six.moves import urllib
+import urllib
 
 from monasca_agent.collector.checks import AgentCheck
 from monasca_agent.common.util import headers

monasca_agent/collector/checks_d/couchbase.py

@@ -14,8 +14,8 @@
 import json
 import re
 import sys
+import urllib
 
-from six.moves import urllib
 
 from monasca_agent.collector.checks import AgentCheck
 from monasca_agent.collector.checks.utils import add_basic_auth

monasca_agent/collector/checks_d/crash.py

@@ -16,7 +16,6 @@ import os
 import re
 
 from datetime import datetime
-from six import text_type
 
 import monasca_agent.collector.checks as checks
 
@@ -78,7 +77,7 @@ class Crash(checks.AgentCheck):
 
                     # Return the date-/timestamp of the most recent crash
                     if dump_count == 1:
-                        value_meta = {'latest': text_type(dt)}
+                        value_meta = {'latest': str(dt)}
 
         log.debug('dump_count: %s', dump_count)
         self.gauge('crash.dump_count', dump_count, dimensions=dimensions,

monasca_agent/collector/checks_d/elastic.py

@@ -15,8 +15,8 @@ import json
 import socket
 import subprocess
 import sys
+import urllib
 
-from six.moves import urllib
 
 from monasca_agent.collector.checks import AgentCheck
 from monasca_agent.collector.checks.utils import add_basic_auth

monasca_agent/collector/checks_d/haproxy.py

@@ -12,7 +12,7 @@
 # under the License.
 
 from collections import defaultdict
-from six.moves import urllib
+import urllib
 
 
 from monasca_agent.collector.checks import AgentCheck

monasca_agent/collector/checks_d/http_check.py

@@ -22,9 +22,9 @@ import socket
 import sys
 import time
 
+from http import client as http_client
 from httplib2 import Http
 from httplib2 import HttpLib2Error
-from six.moves import http_client
 
 import monasca_agent.collector.checks.services_checks as services_checks
 import monasca_agent.common.config as cfg

monasca_agent/collector/checks_d/jenkins.py

@@ -16,8 +16,6 @@ from glob import glob
 import os
 import time
 
-from six import moves
-
 try:
     from xml.etree.ElementTree import ElementTree
 except ImportError:
@@ -103,7 +101,7 @@ class Jenkins(AgentCheck):
             if len(dirs) > 0:
                 dirs = sorted(dirs, reverse=True)
                 # We try to get the last valid build
-                for index in moves.range(0, len(dirs) - 1):
+                for index in range(0, len(dirs) - 1):
                     dir_name = dirs[index]
                     try:
                         timestamp = self._extract_timestamp(dir_name)

monasca_agent/collector/checks_d/kafka_consumer.py

@@ -14,7 +14,6 @@
 import collections
 import logging
 
-import six
 
 import monasca_agent.collector.checks as checks
 
@@ -66,11 +65,11 @@ class KafkaCheck(checks.AgentCheck):
 
         try:
             for group, topics in raw_val.items():
-                assert isinstance(group, six.string_types)
+                assert isinstance(group, str)
                 if isinstance(topics, dict):
                     self.log.info("Found old config format, discarding partition list")
                     topics = list(topics.keys())
-                assert isinstance(topics[0], six.string_types)
+                assert isinstance(topics[0], str)
                 consumer_groups[group] = topics
             return consumer_groups
         except Exception as e:

monasca_agent/collector/checks_d/kyototycoon.py

@@ -13,8 +13,7 @@
 
 from collections import defaultdict
 import re
-
-from six.moves import urllib
+import urllib
 
 from monasca_agent.collector.checks import AgentCheck
 

monasca_agent/collector/checks_d/lighttpd.py

@@ -11,7 +11,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from six.moves import urllib
+import urllib
 
 from monasca_agent.collector.checks import AgentCheck
 from monasca_agent.collector.checks.utils import add_basic_auth

monasca_agent/collector/checks_d/mysql.py

@@ -17,8 +17,6 @@ import subprocess
 import sys
 import traceback
 
-from six import text_type
-
 import monasca_agent.collector.checks as checks
 
 GAUGE = "gauge"
@@ -256,7 +254,7 @@ class MySql(checks.AgentCheck):
         return self._collect_type(key, dict, float)
 
     def _collect_string(self, key, dict):
-        return self._collect_type(key, dict, text_type)
+        return self._collect_type(key, dict, str)
 
     def _collect_type(self, key, dict, the_type):
         self.log.debug("Collecting data with %s" % key)

monasca_agent/collector/checks_d/nginx.py

@@ -12,8 +12,7 @@
 # under the License.
 
 import re
-
-from six.moves import urllib
+import urllib
 
 from monasca_agent.collector.checks import AgentCheck
 from monasca_agent.collector.checks.utils import add_basic_auth

monasca_agent/collector/checks_d/rabbitmq.py

@@ -13,8 +13,7 @@
 
 import json
 import re
-
-from six.moves import urllib
+import urllib
 
 import monasca_agent.collector.checks as checks
 

monasca_agent/collector/checks_d/solidfire.py

@@ -10,13 +10,13 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import functools
 import json
 import logging
 import time
 
 import requests
 from requests.packages.urllib3 import exceptions
-import six
 import warnings
 
 import monasca_agent.collector.checks as checks
@@ -186,7 +186,7 @@ class SolidFire(checks.AgentCheck):
 def retry(exc_tuple, tries=5, delay=1, backoff=2):
     # Retry decorator used for issuing API requests.
     def retry_dec(f):
-        @six.wraps(f)
+        @functools.wraps(f)
         def func_retry(*args, **kwargs):
             _tries, _delay = tries, delay
             while _tries > 1:

monasca_agent/collector/checks_d/supervisord.py

@@ -18,8 +18,7 @@ import itertools
 import re
 import socket
 import time
-
-from six.moves import xmlrpc_client
+from xmlrpc import client as xmlrpc_client
 
 # 3p
 import supervisor.xmlrpc

monasca_agent/collector/checks_d/swift_recon.py

@@ -1,8 +1,7 @@
 import json
 import os
-import six
-from six.moves import urllib
 import socket
+import urllib
 
 import monasca_agent.collector.checks as checks
 
@@ -32,7 +31,7 @@ class SwiftRecon(checks.AgentCheck):
         url = base_url + recon_type
         try:
             body = urllib.request.urlopen(url, timeout=timeout).read()
-            if six.PY3 and isinstance(body, six.binary_type):
+            if isinstance(body, bytes):
                 body = body.decode('utf8')
             content = json.loads(body)
             self.log.debug("-> %s: %s" % (url, content))
@@ -180,7 +179,7 @@ class SwiftRecon(checks.AgentCheck):
                 continue
             dimensions['device'] = drive['device']
             for stat in ('mounted', 'size', 'used', 'avail'):
-                if isinstance(drive[stat], six.string_types) and \
+                if isinstance(drive[stat], str) and \
                         not drive[stat].isdigit():
                     continue
                 self.gauge('swift_recon.disk_usage.{0}'.format(stat),

monasca_agent/collector/checks_d/zk.py

@@ -39,8 +39,8 @@ import re
 import socket
 import struct
 
+from io import StringIO
 from oslo_utils import encodeutils
-from six import StringIO
 
 from monasca_agent.collector.checks import AgentCheck
 

monasca_agent/collector/daemon.py

@@ -14,11 +14,11 @@
 
 # Core modules
 import glob
+import io
 import logging
 import os
 import pstats
 import signal
-import six
 import sys
 import time
 
@@ -137,7 +137,7 @@ class CollectorDaemon(monasca_agent.common.daemon.Daemon):
             if config.get('profile', False) and profiled:
                 try:
                     profiler.disable()
-                    s = six.StringIO()
+                    s = io.StringIO()
                     ps = pstats.Stats(profiler, stream=s).sort_stats("cumulative")
                     ps.print_stats()
                     log.debug(s.getvalue())

monasca_agent/collector/virt/libvirt/inspector.py

@@ -20,7 +20,6 @@ import logging
 from lxml import etree
 from oslo_config import cfg
 from oslo_utils import units
-import six
 
 from monasca_agent.collector.virt import inspector as virt_inspector
 
@@ -87,7 +86,7 @@ class LibvirtInspector(virt_inspector.Inspector):
             return self._get_connection().lookupByUUIDString(instance.UUIDString())
         except Exception as ex:
             if not libvirt or not isinstance(ex, libvirt.libvirtError):
-                raise virt_inspector.InspectorException(six.text_type(ex))
+                raise virt_inspector.InspectorException(str(ex))
             error_code = ex.get_error_code()
             if (error_code == libvirt.VIR_ERR_SYSTEM_ERROR and
                 ex.get_error_domain() in (libvirt.VIR_FROM_REMOTE,

monasca_agent/common/config.py

@@ -14,7 +14,6 @@
 
 import logging
 import os
-import six
 import yaml
 
 from monasca_agent.common import exceptions
@@ -30,8 +29,7 @@ log = logging.getLogger(__name__)
 
 # Make this a singleton class so we don't get the config every time
 # the class is created
-@six.add_metaclass(singleton.Singleton)
-class Config(object):
+class Config(object, metaclass=singleton.Singleton):
 
     def __init__(self, configFile=None):
         # importing it here, in order to avoid a circular import
@@ -107,7 +105,7 @@ class Config(object):
     def get_config(self, sections='Main'):
         """Get the config info."""
         section_list = []
-        if isinstance(sections, six.string_types):
+        if isinstance(sections, str):
             section_list.append(sections)
         elif isinstance(sections, list):
             section_list.extend(sections)

monasca_agent/common/emitter.py

@@ -13,11 +13,10 @@
 
 from hashlib import md5
 import json
-from six.moves.urllib.error import HTTPError
-from six.moves.urllib.request import build_opener
-from six.moves.urllib.request import ProxyHandler
-from six.moves.urllib.request import Request
-from six import PY3
+from urllib.error import HTTPError
+from urllib.request import build_opener
+from urllib.request import ProxyHandler
+from urllib.request import Request
 
 
 def post_headers(payload):
@@ -41,8 +40,7 @@ def http_emitter(message, log, url):
         partial_payload.append(measurement)
 
     payload = json.dumps(partial_payload)
-    if PY3:
-        payload = payload.encode('utf-8')
+    payload = payload.encode('utf-8')
     url = "%s/intake" % url
     headers = post_headers(payload)
 

monasca_agent/common/keystone.py

@@ -17,7 +17,6 @@ import logging
 from keystoneauth1 import identity
 from keystoneauth1 import session
 from keystoneclient import discover
-import six
 
 from monasca_agent.common import singleton
 from monasca_agent import version as ma_version
@@ -244,8 +243,7 @@ def get_args(config):
     return clean_args
 
 
-@six.add_metaclass(singleton.Singleton)
-class Keystone(object):
+class Keystone(object, metaclass=singleton.Singleton):
 
     def __init__(self, config):
         self._config = get_args(config)

monasca_agent/common/util.py

@@ -34,7 +34,6 @@ import logging
 import logging.handlers
 from numbers import Number
 from oslo_utils import encodeutils
-from six import integer_types
 
 log = logging.getLogger(__name__)
 
@@ -45,7 +44,7 @@ VALID_HOSTNAME_RFC_1123_PATTERN = re.compile(
 MAX_HOSTNAME_LEN = 255
 LOGGING_MAX_BYTES = 5 * 1024 * 1024
 
-NumericTypes = (float,) + integer_types
+NumericTypes = (float,) + (int,)
 
 import monasca_agent.common.config as configuration
 from monasca_agent.common.exceptions import PathNotFound

monasca_agent/forwarder/daemon.py

@@ -24,8 +24,6 @@ import signal
 import socket
 import sys
 
-from six import text_type
-
 # set up logging before importing any other components
 import monasca_agent.common.util as util
 util.initialize_logging('forwarder')
@@ -222,10 +220,10 @@ def main():
     skip_ssl_validation = False
     use_simple_http_client = False
 
-    if text_type(tornado.options.options.sslcheck) == u"0":
+    if str(tornado.options.options.sslcheck) == u"0":
         skip_ssl_validation = True
 
-    if text_type(tornado.options.options.use_simple_http_client) == u"1":
+    if str(tornado.options.options.use_simple_http_client) == u"1":
         use_simple_http_client = True
 
     # If we don't have any arguments, run the server.

monasca_setup/detection/plugins/apache.py

@@ -15,8 +15,7 @@
 
 import logging
 import os
-
-from six.moves import urllib
+import urllib
 
 import monasca_setup.agent_config
 import monasca_setup.detection

monasca_setup/detection/plugins/congestion.py

@@ -11,11 +11,10 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import configparser
 import logging
 import os
 
-from six.moves import configparser
-
 from monasca_agent.common.psutil_wrapper import psutil
 import monasca_setup.agent_config
 import monasca_setup.detection

monasca_setup/detection/plugins/mon.py

@@ -20,11 +20,11 @@
     uses statsd.
 """
 
+import configparser
 import logging
 import re
 import yaml
 
-from six.moves import configparser
 
 import monasca_setup.agent_config
 import monasca_setup.detection

monasca_setup/detection/plugins/mysql.py

@@ -11,9 +11,9 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import configparser
 import logging
 import os
-from six.moves import configparser
 
 import monasca_setup.agent_config
 import monasca_setup.detection

monasca_setup/detection/plugins/ovs.py

@@ -11,13 +11,13 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import configparser
 import logging
 import os
 import re
 
 from oslo_config import cfg
 from oslo_utils import importutils
-from six.moves import configparser
 
 from monasca_setup import agent_config
 from monasca_setup import detection

monasca_setup/detection/plugins/process.py

@@ -15,7 +15,6 @@ import json
 import logging
 import yaml
 
-import six
 
 import monasca_setup.agent_config
 import monasca_setup.detection
@@ -136,7 +135,7 @@ class ProcessCheck(monasca_setup.detection.Plugin):
                 if found_process_names:
                     process_item['found_process_names'] = found_process_names
                     if 'exact_match' in process_item:
-                        if isinstance(process_item['exact_match'], six.string_types):
+                        if isinstance(process_item['exact_match'], str):
                             process_item['exact_match'] = (
                                 process_item['exact_match'].lower() == 'true')
                     else:

monasca_setup/detection/plugins/rabbitmq.py

@@ -12,8 +12,7 @@
 # under the License.
 
 import logging
-
-from six.moves import urllib
+import urllib
 
 import monasca_setup.agent_config
 import monasca_setup.detection

monasca_setup/detection/plugins/vcenter.py

@@ -11,10 +11,9 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import configparser
 import logging
 
-from six.moves import configparser
-
 from monasca_agent.common.psutil_wrapper import psutil
 import monasca_setup.agent_config
 from monasca_setup.detection import Plugin

monasca_setup/detection/service_plugin.py

@@ -12,8 +12,7 @@
 # under the License.
 
 import logging
-
-from six.moves import urllib
+import urllib
 
 from monasca_setup import agent_config
 from monasca_setup.detection.plugin import Plugin

monasca_setup/main.py

@@ -26,7 +26,6 @@ import socket
 import subprocess
 import sys
 
-import six
 
 from monasca_setup import agent_config
 from monasca_setup.service.detection import detect_init
@@ -288,7 +287,7 @@ def parse_arguments(parser):
     parser.add_argument(
         '--monasca_url',
         help="Monasca API url, if not defined the url is pulled from keystone",
-        type=six.text_type,
+        type=str,
         default='')
     parser.add_argument(
         '--service_type',

requirements.txt

@@ -18,7 +18,6 @@ python-memcached>=1.56 # PSF
 python-monascaclient>=1.7.0 # Apache-2.0
 python-keystoneclient>=3.8.0 # Apache-2.0
 redis>=2.10.0 # MIT
-six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
 tornado>=4.5.3 # Apache-2.0
 # NOTE(sdague): before allowing in >= 0.21 please be sure

tests/detection/test_kibana.py

@@ -18,7 +18,6 @@ from unittest import mock
 import unittest
 import psutil
 import json
-import six
 
 from monasca_setup.detection.plugins import kibana
 
@@ -91,7 +90,7 @@ class KibanaDetectionTest(unittest.TestCase):
         for instance in kibana_check['instances']:
             self.assertIn('metrics', instance)
             self.assertEqual(list, type(instance['metrics']))
-            six.assertCountEqual(self, _KIBANA_METRICS, instance['metrics'])
+            self.assertCountEqual(_KIBANA_METRICS, instance['metrics'])
 
     def _verify_process_conf(self, process_check, kibana_user):
         # minimize check here, do not check how process should work
@@ -249,6 +248,6 @@ class KibanaDetectionTest(unittest.TestCase):
             conf = self.kibana_plugin.build_config()
             self.assertIsNotNone(conf)
 
-            six.assertCountEqual(self, ['kibana', 'process'], conf.keys())
+            self.assertCountEqual(['kibana', 'process'], conf.keys())
             self._verify_kibana_conf(conf['kibana'], kibana_url)
             self._verify_process_conf(conf['process'], kibana_user)

tests/detection/test_mon.py

@@ -17,7 +17,7 @@ import unittest
 
 import logging
 import psutil
-import six
+import configparser
 
 from monasca_setup.detection.plugins import mon
 
@@ -187,8 +187,6 @@ class TestMonPersisterDetectionPlugin(unittest.TestCase):
         )
 
         mod = "builtins.open"
-        if six.PY2:
-            mod = "__builtin__.open"
 
         with mock.patch(
                 mod,
@@ -220,7 +218,7 @@ class TestMonPersisterDetectionPlugin(unittest.TestCase):
             rcf.assert_called_once_with(config_file)
             self.assertTrue(iih.get_bound_port.called_once)
 
-    @mock.patch('six.moves.configparser.RawConfigParser')
+    @mock.patch('configparser.RawConfigParser')
     def test_should_detect_python_persister_has_config(self, _):
         # NOTE(trebskit) this cannot use mocking the read of the file
         # because when either RawConfigParser or mock_open messes up with
@@ -261,8 +259,6 @@ class TestMonPersisterDetectionPlugin(unittest.TestCase):
         )
 
         mod = "builtins.open"
-        if six.PY2:
-            mod = "__builtin__.open"
 
         with mock.patch(
                 mod,
@@ -501,8 +497,6 @@ class TestMonAPIDetectionPlugin(unittest.TestCase):
         )
 
         mod = "builtins.open"
-        if six.PY2:
-            mod = "__builtin__.open"
 
         with mock.patch(
                 mod,
@@ -513,7 +507,7 @@ class TestMonAPIDetectionPlugin(unittest.TestCase):
 
         self.assertTrue(self._mon_api.available)
 
-    @mock.patch('six.moves.configparser.RawConfigParser')
+    @mock.patch('configparser.RawConfigParser')
     def test_should_detect_python_api_has_config(self, rcp):
         expected_port = 6666
         actual_port = 6666
@@ -535,7 +529,7 @@ class TestMonAPIDetectionPlugin(unittest.TestCase):
         self._detect(retval=[fake_processes])
         self.assertTrue(self._mon_api.available)
 
-    @mock.patch('six.moves.configparser.RawConfigParser')
+    @mock.patch('configparser.RawConfigParser')
     def test_should_not_detect_if_port_dont_match(self, rcp):
         expected_port = 6666
         actual_port = 8070
@@ -569,7 +563,7 @@ class TestMonAPIDetectionPlugin(unittest.TestCase):
     def test_build_java_config_with_hibernate(self):
         self._run_java_build_config(hibernate_enabled=True)
 
-    @mock.patch('six.moves.configparser.RawConfigParser')
+    @mock.patch('configparser.RawConfigParser')
     def test_build_python_config(self, rcp):
         expected_port = 8070
 
@@ -620,8 +614,6 @@ class TestMonAPIDetectionPlugin(unittest.TestCase):
         )
 
         mod = "builtins.open"
-        if six.PY2:
-            mod = "__builtin__.open"
 
         with mock.patch(
                 mod,

tests/detection/test_ovs.py

@@ -11,6 +11,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import configparser
 import logging
 import os
 import psutil
@@ -19,7 +20,6 @@ from unittest import mock
 from unittest import TestCase
 
 from oslo_config import cfg
-from six.moves import configparser
 
 from monasca_setup.detection import utils
 from monasca_setup.detection.plugins.ovs import Ovs

tests/test_aggregator.py

@@ -13,7 +13,6 @@
 
 import unittest
 
-import six
 
 import monasca_agent.common.aggregator as aggregator
 import monasca_agent.common.metrics as metrics_pkg
@@ -66,7 +65,7 @@ class TestMetricsAggregator(unittest.TestCase):
                            value_meta=value_meta)
 
     def testValidMetricUnicodeDimensionValue(self):
-        dimensions = {six.unichr(2440): 'B', 'B': 'C', 'D': 'E'}
+        dimensions = {chr(2440): 'B', 'B': 'C', 'D': 'E'}
         value_meta = {"This is a test": "test, test, test"}
         self.submit_metric("Foo",
                            5,
@@ -74,7 +73,7 @@ class TestMetricsAggregator(unittest.TestCase):
                            value_meta=value_meta)
 
     def testValidMetricUnicodeDimensionKey(self):
-        dimensions = {'A': 'B', 'B': six.unichr(920), 'D': 'E'}
+        dimensions = {'A': 'B', 'B': chr(920), 'D': 'E'}
         value_meta = {"This is a test": "test, test, test"}
         self.submit_metric("Foo",
                            5,
@@ -84,7 +83,7 @@ class TestMetricsAggregator(unittest.TestCase):
     def testValidMetricUnicodeMetricName(self):
         dimensions = {'A': 'B', 'B': 'C', 'D': 'E'}
         value_meta = {"This is a test": "test, test, test"}
-        self.submit_metric(six.unichr(6021),
+        self.submit_metric(chr(6021),
                            5,
                            dimensions=dimensions,
                            value_meta=value_meta)

tests/test_config.py

@@ -14,7 +14,6 @@
 import os.path
 from unittest import mock
 
-import six
 import tempfile
 import unittest
 
@@ -129,5 +128,5 @@ class TestConfig(unittest.TestCase):
     def test_verify_common_config_opts(self):
         opts = util.get_parsed_args(prog='test')
         opts_dict = vars(opts[0])
-        six.assertCountEqual(self, ['config_file', 'clean', 'verbose'],
+        self.assertCountEqual(['config_file', 'clean', 'verbose'],
                              opts_dict.keys())

tests_to_fix/performance/benchmark_aggregator.py

@@ -14,8 +14,6 @@
 Performance tests for the agent/dogstatsd metrics aggregator.
 """
 
-from six.moves import range
-
 
 from monasca_agent.common.aggregator import MetricsAggregator
 

tests_to_fix/test_elastic.py

@@ -11,6 +11,7 @@
 # under the License.
 
 import unittest
+import urllib
 import logging
 logging.basicConfig()
 import subprocess
@@ -18,8 +19,6 @@ import time
 from nose.plugins.skip import SkipTest
 from tests.common import load_check
 
-from six.moves import urllib
-
 
 PORT = 9200
 MAX_WAIT = 150

tests_to_fix/test_haproxy.py

@@ -15,13 +15,13 @@ import subprocess
 import time
 import tempfile
 import os
+import urllib
 import logging
 
 from tests.common import load_check, kill_subprocess
 from nose.plugins.attrib import attr
 from nose.plugins.skip import SkipTest
 
-from six.moves import urllib
 
 
 logging.basicConfig()

tests_to_fix/test_laconic.py

@@ -11,11 +11,11 @@
 # under the License.
 
 import logging
+from io import StringIO
 import unittest
 
 from collector.checks import LaconicFilter
 
-from six.moves import cStringIO as StringIO
 
 
 class TestLaconic(unittest.TestCase):

tests_to_fix/test_monstatsd.py

@@ -15,7 +15,6 @@ import time
 import unittest
 
 import nose.tools as nt
-from six.moves import range
 
 from monasca_agent.common.aggregator import MetricsAggregator
 

tests_to_fix/test_postfix.py

@@ -19,7 +19,6 @@ import binascii
 import re
 import shutil
 from nose.plugins.skip import SkipTest
-from six.moves import range
 
 class TestPostfix(unittest.TestCase):
     #

tests_to_fix/test_system.py

@@ -10,13 +10,11 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from functools import reduce
 import logging
 import platform
 import re
 import unittest
 
-from six.moves import reduce
 
 logging.basicConfig(level=logging.DEBUG)
 logger = logging.getLogger(__file__)

tests_to_fix/test_transaction.py

@@ -13,8 +13,6 @@
 import unittest
 from datetime import timedelta, datetime
 
-from six.moves import range
-
 from monasca_agent.forwarder.transaction import Transaction, TransactionManager
 from monasca_agent.forwarder.daemon import MAX_QUEUE_SIZE, THROTTLING_DELAY
 

tests_to_fix/test_zookeeper.py

@@ -11,8 +11,7 @@
 # under the License.
 
 import unittest
-
-from six import StringIO
+from io import StringIO
 
 from tests.common import get_check