1 files changed, 53 insertions, 49 deletions
diff --git a/crosperf/compare_machines.py b/crosperf/compare_machines.py
index c73f8756..756753a2 100644
--- a/crosperf/compare_machines.py
+++ b/crosperf/compare_machines.py
@@ -1,67 +1,71 @@
 # -*- coding: utf-8 -*-
-# Copyright 2014 The Chromium OS Authors. All rights reserved.
+# Copyright 2014 The ChromiumOS Authors
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Module to compare two machines."""
 
-from __future__ import print_function
 
+import argparse
 import os.path
 import sys
-import argparse
 
 from machine_manager import CrosMachine
 
 
 def PrintUsage(msg):
-  print(msg)
-  print('Usage: ')
-  print('\n compare_machines.py --chromeos_root=/path/to/chroot/ '
-        'machine1 machine2 ...')
+    print(msg)
+    print("Usage: ")
+    print(
+        "\n compare_machines.py --chromeos_root=/path/to/chroot/ "
+        "machine1 machine2 ..."
+    )
 
 
 def Main(argv):
 
-  parser = argparse.ArgumentParser()
-  parser.add_argument(
-      '--chromeos_root',
-      default='/path/to/chromeos',
-      dest='chromeos_root',
-      help='ChromeOS root checkout directory')
-  parser.add_argument('remotes', nargs=argparse.REMAINDER)
-
-  options = parser.parse_args(argv)
-
-  machine_list = options.remotes
-  if len(machine_list) < 2:
-    PrintUsage('ERROR: Must specify at least two machines.')
-    return 1
-  elif not os.path.exists(options.chromeos_root):
-    PrintUsage('Error: chromeos_root does not exist %s' % options.chromeos_root)
-    return 1
-
-  chroot = options.chromeos_root
-  cros_machines = []
-  test_machine_checksum = None
-  for m in machine_list:
-    cm = CrosMachine(m, chroot, 'average')
-    cros_machines = cros_machines + [cm]
-    test_machine_checksum = cm.machine_checksum
-
-  ret = 0
-  for cm in cros_machines:
-    print('checksum for %s : %s' % (cm.name, cm.machine_checksum))
-    if cm.machine_checksum != test_machine_checksum:
-      ret = 1
-      print('Machine checksums do not all match')
-
-  if ret == 0:
-    print('Machines all match.')
-
-  return ret
-
-
-if __name__ == '__main__':
-  retval = Main(sys.argv[1:])
-  sys.exit(retval)
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--chromeos_root",
+        default="/path/to/chromeos",
+        dest="chromeos_root",
+        help="ChromeOS root checkout directory",
+    )
+    parser.add_argument("remotes", nargs=argparse.REMAINDER)
+
+    options = parser.parse_args(argv)
+
+    machine_list = options.remotes
+    if len(machine_list) < 2:
+        PrintUsage("ERROR: Must specify at least two machines.")
+        return 1
+    elif not os.path.exists(options.chromeos_root):
+        PrintUsage(
+            "Error: chromeos_root does not exist %s" % options.chromeos_root
+        )
+        return 1
+
+    chroot = options.chromeos_root
+    cros_machines = []
+    test_machine_checksum = None
+    for m in machine_list:
+        cm = CrosMachine(m, chroot, "average")
+        cros_machines = cros_machines + [cm]
+        test_machine_checksum = cm.machine_checksum
+
+    ret = 0
+    for cm in cros_machines:
+        print("checksum for %s : %s" % (cm.name, cm.machine_checksum))
+        if cm.machine_checksum != test_machine_checksum:
+            ret = 1
+            print("Machine checksums do not all match")
+
+    if ret == 0:
+        print("Machines all match.")
+
+    return ret
+
+
+if __name__ == "__main__":
+    retval = Main(sys.argv[1:])
+    sys.exit(retval)