[dock] Import simplejson as json to make it easy to swap

beat/core/dock.py

@@ -44,7 +44,7 @@ Docker helper classes
 
 
 import os
-import simplejson
+import simplejson as json
 import socket
 import tempfile
 import time
@@ -78,7 +78,7 @@ class Host(object):
             self.images_cache_filename
         ):
             with open(self.images_cache_filename, "r") as f:
-                Host.images_cache = simplejson.load(f)
+                Host.images_cache = json.load(f)
 
         # Discover the environments
         if discover:
@@ -90,7 +90,7 @@ class Host(object):
         # (If necessary) Save the known infos about the images
         if self.images_cache_filename is not None:
             with open(self.images_cache_filename, "w") as f:
-                simplejson.dump(Host.images_cache, f, indent=4)
+                json.dump(Host.images_cache, f, indent=4)
 
     def __contains__(self, key):
         return (key in self.processing_environments) or (key in self.db_environments)
@@ -180,7 +180,7 @@ class Host(object):
 
             if status == 0:
                 try:
-                    infos = simplejson.loads(stdout)
+                    infos = json.loads(stdout)
                     Host.images_cache[image] = infos
                     return infos
                 except Exception as e:
@@ -492,7 +492,7 @@ class Host(object):
             return None
 
         try:
-            return simplejson.loads(stdout)[0]["State"]["Status"]
+            return json.loads(stdout)[0]["State"]["Status"]
         except Exception:
             return None