Add JSONEncoder

pymispgalaxies/__init__.py

@@ -1,4 +1,4 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from .api import Galaxies, Clusters
+from .api import Galaxies, Clusters, EncodeGalaxies

pymispgalaxies/api.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 import json
+from json import JSONEncoder
 import os
 import sys
 import collections
@@ -14,6 +15,14 @@ except ImportError:
     HAS_JSONSCHEMA = False
 
 
+class EncodeGalaxies(JSONEncoder):
+    def default(self, obj):
+        try:
+            return obj._json()
+        except AttributeError:
+            return JSONEncoder.default(self, obj)
+
+
 class Galaxy():
 
     def __init__(self, galaxy):