Enable presubmit pylint in build/android.

build/android/pylib/ports.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Functions that deal with local and device ports."""
 
 import contextlib
 import fcntl
 import httplib
 import logging
 import os
 import re
 import socket
 import traceback
 
-import cmd_helper
-import constants
+from pylib import cmd_helper
+from pylib import constants
 
 
 # The following two methods are used to allocate the port source for various
 # types of test servers. Because some net-related tests can be run on shards at
 # same time, it's important to have a mechanism to allocate the port
 # process-safe. In here, we implement the safe port allocation by leveraging
 # flock.
 def ResetTestServerPortAllocation():
   """Resets the port allocation to start from TEST_SERVER_PORT_FIRST.
 
@@ skipping 139 matching lines @@
         client_error = ('Bad response: %s %s version %s\n  ' %
                         (r.status, r.reason, r.version) +
                         '\n  '.join([': '.join(h) for h in r.getheaders()]))
     except (httplib.HTTPException, socket.error) as e:
       # Probably too quick connecting: try again.
       exception_error_msgs = traceback.format_exception_only(type(e), e)
       if exception_error_msgs:
         client_error = ''.join(exception_error_msgs)
   # Only returns last client_error.
   return (False, client_error or 'Timeout')