Fix PRESUBMIT errors of tools/perf

Bug:866261
Cq-Include-Trybots: master.tryserver.chromium.perf:obbs_fyi
Change-Id: I9958cd37309a866ccedf668a7471aa1e2ec3d2af

NOTRY=true  # layout test flakiness

Change-Id: I9958cd37309a866ccedf668a7471aa1e2ec3d2af
Reviewed-on: https://chromium-review.googlesource.com/1146330
Commit-Queue: Ned Nguyen <nednguyen@google.com>
Reviewed-by: Juan Antonio Navarro Pérez <perezju@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577182}

tools/perf/chrome_telemetry_build/chromium_config.py

@@ -4,6 +4,7 @@
 
 import os
 
+# pylint: disable=wrong-import-position
 from core import path_util
 
 CLIENT_CONFIG_PATH = os.path.join(

tools/perf/contrib/cluster_telemetry/screenshot.py

@@ -4,9 +4,10 @@
 
 import logging
 import os
-import py_utils
 import time
 
+import py_utils
+
 from telemetry.page import legacy_page_test
 from telemetry.util import image_util
 

tools/perf/core/perf_data_generator.py

@@ -772,7 +772,7 @@ def verify_all_tests_in_benchmark_csv(tests, benchmark_metadata):
 def _verify_benchmark_owners(benchmark_metadata):
   unowned_benchmarks = set()
   for benchmark_name in benchmark_metadata:
-    if benchmark_metadata[benchmark_name].emails == None:
+    if benchmark_metadata[benchmark_name].emails is None:
       unowned_benchmarks.add(benchmark_name)
 
   assert not unowned_benchmarks, (

tools/perf/core/perf_data_generator_unittest.py

 # Copyright 2017 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.
+import json
 import unittest
 
 from core import perf_data_generator
 from core.perf_data_generator import BenchmarkMetadata
 
 import mock
-import json
 
 
 class PerfDataGeneratorTest(unittest.TestCase):

tools/perf/core/results_dashboard.py

@@ -11,7 +11,6 @@
 import calendar
 import datetime
 import httplib
-import httplib2
 import json
 import os
 import subprocess
@@ -24,12 +23,14 @@ import urllib2
 import uuid
 import zlib
 
-from telemetry.internal.util import external_modules
+import httplib2
 
-psutil = external_modules.ImportOptionalModule('psutil')
+from telemetry.internal.util import external_modules
 
 from core import path_util
 
+psutil = external_modules.ImportOptionalModule('psutil')
+
 
 # The paths in the results dashboard URLs for sending results.
 SEND_RESULTS_PATH = '/add_point'

tools/perf/core/sharding_map_generator.py

@@ -62,9 +62,11 @@ rm win_10_test_data.json
 """
 
 import argparse
-from collections import OrderedDict
-import core.path_util
+import collections
 import json
+import sys
+
+import core.path_util
 
 core.path_util.AddTelemetryToPath()
 
@@ -153,16 +155,16 @@ def generate_sharding_map(
       story_timing_ordered_dict, num_shards)
 
   total_time = 0
-  sharding_map = OrderedDict()
-  debug_map = OrderedDict()
-  min_shard_time = float('inf')
+  sharding_map = collections.OrderedDict()
+  debug_map = collections.OrderedDict()
+  min_shard_time = sys.maxint
   min_shard_index = None
   max_shard_time = 0
   max_shard_index = None
   num_stories = len(story_timing_ordered_dict)
   for i in range(num_shards):
-    sharding_map[str(i)] = {'benchmarks': OrderedDict()}
-    debug_map[str(i)] = OrderedDict()
+    sharding_map[str(i)] = {'benchmarks': collections.OrderedDict()}
+    debug_map[str(i)] = collections.OrderedDict()
     time_per_shard = 0
     stories_in_shard = []
     expected_total_time = expected_time_per_shard * (i + 1)
@@ -194,7 +196,7 @@ def generate_sharding_map(
       json.dump(debug_map, output_file, indent = 4, separators=(',', ': '))
 
 
-  sharding_map['extra_infos'] = OrderedDict([
+  sharding_map['extra_infos'] = collections.OrderedDict([
       ('num_stories', num_stories),
       # Double all the time stats by 2 to account for reference build.
       ('predicted_min_shard_time', min_shard_time * 2),
@@ -214,7 +216,7 @@ def _get_expected_time_per_shard(timing_data, num_shards):
 
 def _add_benchmarks_to_shard(sharding_map, shard_index, stories_in_shard,
     all_stories):
-  benchmarks = OrderedDict()
+  benchmarks = collections.OrderedDict()
   for story in stories_in_shard:
     (b, story) = story.split('/', 1)
     if b not in benchmarks:
@@ -222,7 +224,7 @@ def _add_benchmarks_to_shard(sharding_map, shard_index, stories_in_shard,
     benchmarks[b].append(story)
 
   # Format the benchmark's stories by indices
-  benchmarks_in_shard = OrderedDict()
+  benchmarks_in_shard = collections.OrderedDict()
   for b in benchmarks:
     benchmarks_in_shard[b] = {}
     first_story = all_stories[b].index(benchmarks[b][0])
@@ -251,7 +253,7 @@ def _load_timing_data_from_file(benchmarks_data, timing_data_file, repeat):
 
 
 def _init_timing_dict_for_benchmarks(benchmarks_data):
-  timing_data = OrderedDict()
+  timing_data = collections.OrderedDict()
   for b in benchmarks_data:
     story_list = benchmarks_data[b]['stories']
     for story in story_list:
@@ -260,20 +262,20 @@ def _init_timing_dict_for_benchmarks(benchmarks_data):
 
 
 def _generate_empty_sharding_map(num_shards):
-  sharding_map = OrderedDict()
+  sharding_map = collections.OrderedDict()
   for i in range(0, num_shards):
-    sharding_map[str(i)] = {'benchmarks': OrderedDict()}
+    sharding_map[str(i)] = {'benchmarks': collections.OrderedDict()}
   return sharding_map
 
 
 def test_sharding_map(sharding_map_file, timing_data, all_stories):
-  results = OrderedDict()
+  results = collections.OrderedDict()
 
   with open(sharding_map_file) as f:
-    sharding_map = json.load(f, object_pairs_hook=OrderedDict)
+    sharding_map = json.load(f, object_pairs_hook=collections.OrderedDict)
     sharding_map.pop('extra_infos', None)
     for shard in sharding_map:
-      results[shard] = OrderedDict()
+      results[shard] = collections.OrderedDict()
       shard_total_time = 0
       for benchmark_name in sharding_map[shard]['benchmarks']:
         benchmark = sharding_map[shard]['benchmarks'][benchmark_name]

tools/perf/core/sharding_map_generator_unittest.py

@@ -2,26 +2,27 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from collections import OrderedDict
+import collections
 import copy
-from core import sharding_map_generator
 import json
 import os
 import tempfile
 import unittest
 
+from core import sharding_map_generator
+
 from py_utils import tempfile_ext
 
 
 class TestShardingMapGenerator(unittest.TestCase):
 
   def _init_sample_timing_data(self, times):
-    timing_data = OrderedDict()
+    timing_data = collections.OrderedDict()
     all_stories = {}
-    for i in range(len(times)):
+    for i, _ in enumerate(times):
       all_stories['benchmark_' + str(i)] = []
       story_times = times[i]
-      for j in range(len(story_times)):
+      for j, _ in enumerate(story_times):
         all_stories['benchmark_' + str(i)].append('story_' + str(j))
         timing_data['benchmark_' + str(i) + '/' + 'story_' + str(j)] = (
             story_times[j])

tools/perf/core/upload_results_to_perf_dashboard.py

@@ -42,8 +42,9 @@ def _GetDashboardJson(options):
   with open(options.results_file) as f:
     results = json.load(f)
   dashboard_json = {}
-  if not 'charts' in results:
+  if 'charts' not in results:
     # These are legacy results.
+    # pylint: disable=redefined-variable-type
     dashboard_json = results_dashboard.MakeListOfPoints(
       results, options.configuration_name, stripped_test_name,
       options.buildername, options.buildnumber, {},

tools/perf/fetch_benchmark_deps_unittest.py

@@ -15,6 +15,7 @@ from telemetry.wpr import archive_info
 from core import path_util
 import fetch_benchmark_deps
 
+
 def NormPaths(paths):
   return sorted([os.path.normcase(p) for p in paths.splitlines()])
 

tools/perf/generate_legacy_perf_dashboard_json.py

@@ -252,6 +252,6 @@ def _FormatHumanReadable(number):
     exponent += 1
   if digits >= 100:
     # Don't append a meaningless '.0' to an integer number.
-    digits = int(digits)
+    digits = int(digits)  # pylint: disable=redefined-variable-type
   # Exponent is now divisible by 3, between -3 and 6 inclusive: (-3, 0, 3, 6).
   return '%s%s' % (digits, metric_prefixes[exponent])

tools/perf/page_sets/google_pages.py

@@ -2,12 +2,13 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import os
+
 from page_sets.login_helpers import google_login
 
 from telemetry.page import page as page_module
 from telemetry.page import shared_page_state
 
-import os
 
 def _DeterministicPerformanceCounters():
   with open(os.path.join(os.path.dirname(__file__),

tools/perf/page_sets/rendering/rendering_story.py

@@ -30,7 +30,7 @@ class RenderingStory(page.Page):
   URL = NotImplemented
   ABSTRACT_STORY = True
   SUPPORTED_PLATFORMS = platforms.ALL_PLATFORMS
-  TAGS = None
+  TAGS =[]
   PLATFORM_SPECIFIC = False
   YEAR = None
 
@@ -42,7 +42,6 @@ class RenderingStory(page.Page):
                make_javascript_deterministic=True,
                base_dir=None):
     tags = []
-    if self.TAGS:
     for t in self.TAGS:
       assert t in story_tags.ALL_TAGS
       tags.append(t.name)

tools/perf/page_sets/system_health/multi_tab_stories.py

@@ -2,9 +2,10 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import py_utils
 import logging
 
+import py_utils
+
 from page_sets.system_health import system_health_story
 from page_sets.system_health import story_tags
 from page_sets.system_health import platforms

tools/perf/page_sets/system_health/system_health_story.py

@@ -54,15 +54,14 @@ class SystemHealthStory(page.Page):
   # flow during replay. Switch this to False when recording.
   SKIP_LOGIN = True
   SUPPORTED_PLATFORMS = platforms.ALL_PLATFORMS
-  TAGS = None
+  TAGS = []
   PLATFORM_SPECIFIC = False
 
   def __init__(self, story_set, take_memory_measurement,
       extra_browser_args=None):
     case, group, _ = self.NAME.split(':')
     tags = []
-    if self.TAGS:
-      for t in self.TAGS:
+    for t in self.TAGS:  # pylint: disable=not-an-iterable
       assert t in story_tags.ALL_TAGS
       tags.append(t.name)
     super(SystemHealthStory, self).__init__(

tools/perf/process_perf_results.py

@@ -8,6 +8,8 @@ import json
 import logging
 import multiprocessing as mp
 import os
+from os import listdir
+from os.path import isfile, join, basename
 import shutil
 import sys
 import tempfile
@@ -18,8 +20,6 @@ from core import oauth_api
 from core import path_util
 from core import upload_results_to_perf_dashboard
 from core import results_merger
-from os import listdir
-from os.path import isfile, join, basename
 
 path_util.AddAndroidPylibToPath()