Change TestResultServer to use python 2.7.

Tools/TestResultServer/model/jsonresults.py

 # Copyright (C) 2010 Google Inc. All rights reserved.
 #
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 # met:
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 #     * Redistributions of source code must retain the above copyright
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 # in the documentation and/or other materials provided with the
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 # this software without specific prior written permission.
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 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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-from datetime import datetime
-from django.utils import simplejson
+import json
 import logging
 import sys
 import traceback
 
 from model.testfile import TestFile
 
 JSON_RESULTS_FILE = "results.json"
 JSON_RESULTS_FILE_SMALL = "results-small.json"
 JSON_RESULTS_PREFIX = "ADD_RESULTS("
 JSON_RESULTS_SUFFIX = ");"
@@ skipping 59 matching lines @@
 
 class JsonResults(object):
     @classmethod
     def _strip_prefix_suffix(cls, data):
         # FIXME: Stop stripping jsonp callback once we upload pure json everywhere.
         if data.startswith(JSON_RESULTS_PREFIX) and data.endswith(JSON_RESULTS_SUFFIX):
             return data[len(JSON_RESULTS_PREFIX):len(data) - len(JSON_RESULTS_SUFFIX)]
         return data
 
     @classmethod
-    def _generate_file_data(cls, json, sort_keys=False):
-        return simplejson.dumps(json, separators=(',', ':'), sort_keys=sort_keys)
+    def _generate_file_data(cls, data, sort_keys=False):
+        return json.dumps(data, separators=(',', ':'), sort_keys=sort_keys)
 
     @classmethod
     def _load_json(cls, file_data):
         json_results_str = cls._strip_prefix_suffix(file_data)
         if not json_results_str:
             logging.warning("No json results data.")
             return None
 
         try:
-            return simplejson.loads(json_results_str)
+            return json.loads(json_results_str)
         except:
             logging.debug(json_results_str)
             logging.error("Failed to load json results: %s", traceback.print_exception(*sys.exc_info()))
             return None
 
     @classmethod
     def _merge_json(cls, aggregated_json, incremental_json, num_runs):
         cls._merge_non_test_data(aggregated_json, incremental_json, num_runs)
         incremental_tests = incremental_json[JSON_RESULTS_TESTS]
         if incremental_tests:
@@ skipping 221 matching lines @@
 
         logging.debug("Checking test results json...")
         if not cls._check_json(builder, json):
             return None
 
         test_list_json = {}
         tests = json[builder][JSON_RESULTS_TESTS]
         cls._delete_results_and_times(tests)
         test_list_json[builder] = {"tests": tests}
         return cls._generate_file_data(test_list_json)