Fix "Unhandles exception (_linux_set_time)" bug. Issue: #15

Plus correct flake8 errors.

agent.py

 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+# flake8: noqa ignore=E402
 
 from os import environ, chdir
 import platform
 import subprocess
 import sys
 
+
 system = platform.system()
 
 if system == "Linux":
@@ -19,7 +21,6 @@ if system == "Linux":
 from twisted.internet import reactor, defer
 from twisted.internet.task import LoopingCall
 
-
 import uptime
 import logging
 from inspect import getargspec, isfunction
@@ -30,6 +31,7 @@ from utils import SerialLineReceiverBase
 # (relative import error.
 from context import BaseContext, get_context, get_serial  # noqa
 
+
 Context = get_context()
 
 logging.basicConfig()

linux/_linuxcontext.py

@@ -8,8 +8,6 @@ from shutil import rmtree, move
 import subprocess
 import sys
 
-working_directory = sys.path[0]
-
 import logging
 import fileinput
 import tarfile
@@ -19,13 +17,15 @@ from StringIO import StringIO
 from base64 import decodestring
 from hashlib import md5
 
-
 from ssh import PubKey
 from .network import change_ip_ubuntu, change_ip_rhel
 from context import BaseContext
 
 from twisted.internet import reactor
 
+
+working_directory = sys.path[0]
+
 logger = logging.getLogger()
 
 SSH_DIR = expanduser('~cloud/.ssh')
@@ -51,6 +51,7 @@ class Context(BaseContext):
 
     # http://stackoverflow.com/questions/12081310/
     # python-module-to-change-system-date-and-time
+    @staticmethod
     def _linux_set_time(time):
         import ctypes
         import ctypes.util

linux/ssh.py

@@ -2,6 +2,8 @@ from base64 import decodestring
 from struct import unpack
 import binascii
 
+import unittest
+
 
 class InvalidKeyType(Exception):
     pass
@@ -56,9 +58,6 @@ class PubKey(object):
         return u'<PubKey: %s>' % unicode(self)
 
 
-import unittest
-
-
 class SshTestCase(unittest.TestCase):
     def setUp(self):
         self.p1 = PubKey.from_str('ssh-rsa AAAAB3NzaC1yc2EA comment')

windows/_win32context.py

 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-working_directory = r"C:\circle"
-
 from os.path import join
 
 import logging
@@ -21,6 +19,8 @@ from .network import change_ip_windows
 from context import BaseContext
 
 
+working_directory = r"C:\circle"
+
 logger = logging.getLogger()