Fix style in tools/auto_bisect.

tools/auto_bisect/request_build.py

 # Copyright 2014 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.
 
 """This module contains functionality for starting build try jobs via HTTP.
 
 This includes both sending a request to start a job, and also related code
 for querying the status of the job.
 
 This module can be either run as a stand-alone script to send a request to a
 builder, or imported and used by calling the public functions below.
 """
 
-import getpass
 import json
-import optparse
-import os
-import sys
-import urllib
 import urllib2
 
-import fetch_build
-
 # URL template for fetching JSON data about builds.
 BUILDER_JSON_URL = ('%(server_url)s/json/builders/%(bot_name)s/builds/'
                     '%(build_num)s?as_text=1&filter=0')
 
 # URL template for displaying build steps.
 BUILDER_HTML_URL = '%(server_url)s/builders/%(bot_name)s/builds/%(build_num)s'
 
 # Status codes that can be returned by the GetBuildStatus method
 # From buildbot.status.builder.
 # See: http://docs.buildbot.net/current/developer/results.html
@@ skipping 68 matching lines @@
       # See: http://docs.buildbot.net/current/developer/results.html
       # results[1]: List of items, contains text if step fails, otherwise empty.
       if (item.get('name') == 'package_build' and
           item.get('isFinished') and
           item.get('results')[0] in OK):
         return True
   return False
 
 
 def _FetchBuilderData(builder_url):
-  """Fetches JSON data for the all the builds from the tryserver.
+  """Fetches JSON data for the all the builds from the try server.
 
   Args:
-    builder_url: A tryserver URL to fetch builds information.
+    builder_url: A try server URL to fetch builds information.
 
   Returns:
-    A dictionary with information of all build on the tryserver.
+    A dictionary with information of all build on the try server.
   """
   data = None
   try:
     url = urllib2.urlopen(builder_url)
   except urllib2.URLError as e:
     print ('urllib2.urlopen error %s, waterfall status page down.[%s]' % (
         builder_url, str(e)))
     return None
   if url is not None:
     try:
       data = url.read()
     except IOError as e:
       print 'urllib2 file object read error %s, [%s].' % (builder_url, str(e))
   return data
 
 
 def _GetBuildData(buildbot_url):
-  """Gets build information for the given build id from the tryserver.
+  """Gets build information for the given build id from the try server.
 
   Args:
-    buildbot_url: A tryserver URL to fetch build information.
+    buildbot_url: A try server URL to fetch build information.
 
   Returns:
     A dictionary with build information if build exists, otherwise None.
   """
   builds_json = _FetchBuilderData(buildbot_url)
   if builds_json:
     return json.loads(builds_json)
   return None
 
 
 def GetBuildStatus(build_num, bot_name, server_url):
   """Gets build status from the buildbot status page for a given build number.
 
   Args:
-    build_num: A build number on tryserver to determine its status.
+    build_num: A build number on try server to determine its status.
     bot_name: Name of the bot where the build information is scanned.
     server_url: URL of the buildbot.
 
   Returns:
     A pair which consists of build status (SUCCESS, FAILED or PENDING) and a
     link to build status page on the waterfall.
   """
   results_url = None
   if build_num:
     # Get the URL for requesting JSON data with status information.
@@ skipping 16 matching lines @@
       elif _IsBuildSuccessful(build_data):
         return (OK, results_url)
   return (PENDING, results_url)
 
 
 def GetBuildNumFromBuilder(build_reason, bot_name, server_url):
   """Gets build number on build status page for a given 'build reason'.
 
   This function parses the JSON data from buildbot page and collects basic
   information about the all the builds, and then uniquely identifies the build
-  based on the 'reason' attribute in builds's JSON data.
+  based on the 'reason' attribute in the JSON data about the build.
 
   The 'reason' attribute set is when a build request is posted, and it is used
   to identify the build on status page.
 
   Args:
-    build_reason: A unique build name set to build on tryserver.
+    build_reason: A unique build name set to build on try server.
     bot_name: Name of the bot where the build information is scanned.
     server_url: URL of the buildbot.
 
   Returns:
     A build number as a string if found, otherwise None.
   """
   buildbot_url = BUILDER_JSON_URL % {
       'server_url': server_url,
       'bot_name': bot_name,
       'build_num': '_all',
   }
   builds_json = _FetchBuilderData(buildbot_url)
   if builds_json:
     builds_data = json.loads(builds_json)
     for current_build in builds_data:
       if builds_data[current_build].get('reason') == build_reason:
         return builds_data[current_build].get('number')
   return None