Use with_metaclass instead of __metaclass__

.travis.yml

@@ -6,7 +6,6 @@ cache:
 python:
   - 2.6
   - 2.7
-  - 3.2
   - 3.3
   - 3.4
   - 3.6

osquery/config_plugin.py

@@ -11,13 +11,13 @@
 from __future__ import unicode_literals
 
 from abc import ABCMeta, abstractmethod
+from future.utils import with_metaclass
 
 from osquery.extensions.ttypes import ExtensionResponse, ExtensionStatus
 from osquery.plugin import BasePlugin
 
-class ConfigPlugin(BasePlugin):
+class ConfigPlugin(with_metaclass(ABCMeta, BasePlugin)):
     """All config plugins should inherit from ConfigPlugin"""
-    __metaclass__ = ABCMeta
 
     def call(self, context):
         """Internal routing for this plugin type.

osquery/logger_plugin.py

@@ -12,13 +12,14 @@
 from __future__ import unicode_literals
 
 from abc import ABCMeta, abstractmethod
+from future.utils import with_metaclass
 
 from osquery.extensions.ttypes import ExtensionResponse, ExtensionStatus
 from osquery.plugin import BasePlugin
 
-class LoggerPlugin(BasePlugin):
+
+class LoggerPlugin(with_metaclass(ABCMeta, BasePlugin)):
     """All logger plugins should inherit from LoggerPlugin"""
-    __metaclass__ = ABCMeta
 
     _use_glog_message = "Use Glog for status logging"
     _invalid_action_message = "Not a valid logger plugin action"

osquery/management.py

@@ -11,7 +11,6 @@
 import argparse
 import logging
 import os
-import shutil
 import socket
 import subprocess
 import sys
@@ -98,7 +97,7 @@ def open(self, timeout=2, interval=0.01):
             try:
                 self.connection.open()
                 return
-            except:
+            except Exception:
                 time.sleep(interval)
                 delay += interval
         self.instance.kill()

osquery/plugin.py

@@ -11,12 +11,12 @@
 from __future__ import unicode_literals
 
 from abc import ABCMeta, abstractmethod
+from future.utils import with_metaclass
 
 from osquery.singleton import Singleton
 
-class BasePlugin(Singleton):
+class BasePlugin(with_metaclass(ABCMeta, Singleton)):
     """All osquery plugins should inherit from BasePlugin"""
-    __metaclass__ = ABCMeta
 
     @abstractmethod
     def call(self, context):

osquery/table_plugin.py

@@ -13,15 +13,15 @@
 from abc import ABCMeta, abstractmethod
 from builtins import str
 from collections import namedtuple
+from future.utils import with_metaclass
 import json
 import logging
 
 from osquery.extensions.ttypes import ExtensionResponse, ExtensionStatus
 from osquery.plugin import BasePlugin
 
-class TablePlugin(BasePlugin):
+class TablePlugin(with_metaclass(ABCMeta, BasePlugin)):
     """All table plugins should inherit from TablePlugin"""
-    __metaclass__ = ABCMeta
 
     _no_action_message = "Table plugins must include a request action"
 

setup.py

@@ -109,7 +109,6 @@ def run(self):
           "Programming Language :: Python :: 2.6",
           "Programming Language :: Python :: 2.7",
           "Programming Language :: Python :: 3",
-          "Programming Language :: Python :: 3.2",
           "Programming Language :: Python :: 3.3",
           "Programming Language :: Python :: 3.4",
           "Programming Language :: Python :: 3.6",