[Android] Add a custom pylintrc for build/android/.

build/android/update_verification.py

 #!/usr/bin/env python
 #
 # Copyright 2013 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.
 
 """Runs semi-automated update testing on a non-rooted device.
 
 This script will help verify that app data is preserved during an update.
 To use this script first run it with the create_app_data option.
 
 ./update_verification.py create_app_data --old-apk <path> --app-data <path>
 
 The script will then install the old apk, prompt you to create some app data
 (bookmarks, etc.), and then save the app data in the path you gave it.
 
 Next, once you have some app data saved, run this script with the test_update
 option.
 
 ./update_verification.py test_update --old-apk <path> --new-apk <path>
 --app-data <path>
 
 This will install the old apk, load the saved app data, install the new apk,
 and ask the user to verify that all of the app data was preserved.
 """
 
 import argparse
 import logging
-import os
 import sys
-import time
 
-from pylib import constants
 from devil.android import apk_helper
 from devil.android import device_blacklist
 from devil.android import device_errors
 from devil.android import device_utils
 from devil.utils import run_tests_helper
 
 def CreateAppData(device, old_apk, app_data, package_name):
   device.Install(old_apk)
   raw_input('Set the application state. Once ready, press enter and '
             'select "Backup my data" on the device.')
   device.adb.Backup(app_data, packages=[package_name])
-  logging.critical('Application data saved to %s' % app_data)
+  logging.critical('Application data saved to %s', app_data)
 
 def TestUpdate(device, old_apk, new_apk, app_data, package_name):
   device.Install(old_apk)
   device.adb.Restore(app_data)
   # Restore command is not synchronous
   raw_input('Select "Restore my data" on the device. Then press enter to '
             'continue.')
   device_path = device.GetApplicationPaths(package_name)
   if not device_path:
     raise Exception('Expected package %s to already be installed. '
@@ skipping 36 matching lines @@
 
   if args.blacklist_file:
     blacklist = device_blacklist.Blacklist(args.blacklist_file)
   else:
     blacklist = None
 
   devices = device_utils.DeviceUtils.HealthyDevices(blacklist)
   if not devices:
     raise device_errors.NoDevicesError()
   device = devices[0]
-  logging.info('Using device %s for testing.' % str(device))
+  logging.info('Using device %s for testing.', str(device))
 
   package_name = (args.package_name if args.package_name
                   else apk_helper.GetPackageName(args.old_apk))
   if args.command == 'create_app_data':
     CreateAppData(device, args.old_apk, args.app_data, package_name)
   elif args.command == 'test_update':
     TestUpdate(
         device, args.old_apk, args.new_apk, args.app_data, package_name)
   else:
     raise Exception('Unknown test command: %s' % args.command)
 
 if __name__ == '__main__':
   sys.exit(main())