1 files changed, 39 insertions, 39 deletions
diff --git a/cros_utils/timeline.py b/cros_utils/timeline.py
index cce0b05c..f18a39bb 100644
--- a/cros_utils/timeline.py
+++ b/cros_utils/timeline.py
@@ -1,55 +1,55 @@
 # -*- coding: utf-8 -*-
-# Copyright 2019 The Chromium OS Authors. All rights reserved.
+# Copyright 2019 The ChromiumOS Authors
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Tools for recording and reporting timeline of benchmark_run."""
 
-from __future__ import print_function
 
-__author__ = 'yunlian@google.com (Yunlian Jiang)'
+__author__ = "yunlian@google.com (Yunlian Jiang)"
 
 import time
 
 
 class Event(object):
-  """One event on the timeline."""
+    """One event on the timeline."""
 
-  def __init__(self, name='', cur_time=0):
-    self.name = name
-    self.timestamp = cur_time
+    def __init__(self, name="", cur_time=0):
+        self.name = name
+        self.timestamp = cur_time
 
 
 class Timeline(object):
-  """Use a dict to store the timeline."""
-
-  def __init__(self):
-    self.events = []
-
-  def Record(self, event):
-    for e in self.events:
-      assert e.name != event, (
-          'The event {0} is already recorded.'.format(event))
-    cur_event = Event(name=event, cur_time=time.time())
-    self.events.append(cur_event)
-
-  def GetEvents(self):
-    return ([e.name for e in self.events])
-
-  def GetEventDict(self):
-    tl = {}
-    for e in self.events:
-      tl[e.name] = e.timestamp
-    return tl
-
-  def GetEventTime(self, event):
-    for e in self.events:
-      if e.name == event:
-        return e.timestamp
-    raise IndexError('The event {0} is not recorded'.format(event))
-
-  def GetLastEventTime(self):
-    return self.events[-1].timestamp
-
-  def GetLastEvent(self):
-    return self.events[-1].name
+    """Use a dict to store the timeline."""
+
+    def __init__(self):
+        self.events = []
+
+    def Record(self, event):
+        for e in self.events:
+            assert e.name != event, "The event {0} is already recorded.".format(
+                event
+            )
+        cur_event = Event(name=event, cur_time=time.time())
+        self.events.append(cur_event)
+
+    def GetEvents(self):
+        return [e.name for e in self.events]
+
+    def GetEventDict(self):
+        tl = {}
+        for e in self.events:
+            tl[e.name] = e.timestamp
+        return tl
+
+    def GetEventTime(self, event):
+        for e in self.events:
+            if e.name == event:
+                return e.timestamp
+        raise IndexError("The event {0} is not recorded".format(event))
+
+    def GetLastEventTime(self):
+        return self.events[-1].timestamp
+
+    def GetLastEvent(self):
+        return self.events[-1].name