Fix json UTF8 dumping in Python 2

examples/products.py

@@ -11,6 +11,9 @@ import sys
 
 if sys.version_info.major >= 3:
     unicode = str
+    encode = lambda x : x
+else:
+    encode = lambda x : x.encode('utf8')
 
 # you have to fill the below with your login details for the ProdWS Service
 USER = "xxx"
@@ -40,8 +43,8 @@ if data['success']:
                 'max_weight': unicode(weight['maxValue'])
             }
 
-    json.dump(products, sys.stdout,
-            sort_keys=True, indent=4, ensure_ascii=False)
+    print(encode(json.dumps(products,
+                            sort_keys=True, indent=4, ensure_ascii=False)))
     print('')
 else:
     print('ERROR: %s' % data['Exception'], file=sys.stderr)