json: Replace most use of simplejson with json.

This is progress towards removing simplejson as a dependency.

tools/send-github-payloads

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 import sys
 import os
-import simplejson
+import json
 
 sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'api'))
 import zulip
@@ -11,7 +11,7 @@ zulip_client = zulip.Client(site="http://localhost:9991", client="ZulipGithubPay
 payload_dir = "zerver/fixtures/github"
 for filename in os.listdir(payload_dir):
     with open(os.path.join(payload_dir, filename)) as f:
-        req = simplejson.loads(f.read())
+        req = json.loads(f.read())
     req['api-key'] = zulip_client.api_key
     req['email'] = zulip_client.email
     zulip_client.do_api_query(req, zulip.API_VERSTRING + "external/github")

tools/update-authors-json

@@ -18,7 +18,7 @@ import subprocess
 
 from six.moves import range
 import requests
-import simplejson as json
+import json
 
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
 os.environ['DJANGO_SETTINGS_MODULE'] = 'zproject.settings'

zerver/views/users.py

@@ -1,7 +1,7 @@
 from typing import Callable, Text, Union, Optional, Dict, Any, List, Tuple
 
 import os
-import simplejson as json
+import ujson
 
 from django.http import HttpRequest, HttpResponse
 
@@ -445,7 +445,7 @@ def about_view(request):
     # type: (HttpRequest) -> HttpResponse
 
     with open(settings.CONTRIBUTORS_DATA) as f:
-        data = json.load(f)
+        data = ujson.load(f)
 
     return render(
         request,

zerver/worker/queue_processors.py

@@ -54,7 +54,7 @@
 import datetime
 import logging
 import requests
-import simplejson
+import ujson
 from six.moves import cStringIO as StringIO
 import re
 import importlib
@@ -316,7 +316,7 @@ def start(self):
                 'forward_error',
                 method='POST',
                 url='deployments/report_error',
-                make_request=(lambda type, report: {'type': type, 'report': simplejson.dumps(report)}),
+                make_request=(lambda type, report: {'type': type, 'report': ujson.dumps(report)}),
             )
         QueueProcessingWorker.start(self)