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

beat/core/experiment.py

@@ -44,7 +44,7 @@ Validation for experiments
 
 import os
 import collections
-import simplejson
+import simplejson as json
 
 from . import utils
 from . import algorithm
@@ -1306,7 +1306,7 @@ class Experiment(object):
           str: The JSON representation for this object
         """
 
-        return simplejson.dumps(self.data, indent=indent, cls=utils.NumpyJSONEncoder)
+        return json.dumps(self.data, indent=indent, cls=utils.NumpyJSONEncoder)
 
     def __str__(self):