More defensive json serialization for events

CONTRIBUTING.md

@@ -20,3 +20,10 @@ Development information (for developing this module itself)
 1. Run tests: You'll need redis running locally on its default port of 6379.
 
         $ py.test testing
+
+Developing with different python versions
+-----------------------------------------
+
+Example for switching to python 3:
+
+```virtualenv -p `which python3` ~/.virtualenvs/python-client```

demo/demo.py

@@ -10,7 +10,7 @@
 
 ch = logging.StreamHandler(sys.stdout)
 ch.setLevel(logging.DEBUG)
-formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
+formatter = logging.Formatter('%(asctime)s - %(name)s:%(lineno)d - %(levelname)s - %(message)s')
 ch.setFormatter(formatter)
 root.addHandler(ch)
 

ldclient/event_consumer.py

@@ -1,9 +1,9 @@
 from __future__ import absolute_import
 
 import errno
-import json
 from threading import Thread
 
+import jsonpickle
 import requests
 from requests.packages.urllib3.exceptions import ProtocolError
 
@@ -42,12 +42,15 @@ def do_send(should_retry):
                     body = [events]
                 else:
                     body = events
+
+                json_body = jsonpickle.encode(body, unpicklable=False)
+                log.debug('Sending events payload: ' + json_body)
                 hdrs = _headers(self.sdk_key)
                 uri = self._config.events_uri
                 r = self._session.post(uri,
                                        headers=hdrs,
                                        timeout=(self._config.connect_timeout, self._config.read_timeout),
-                                       data=json.dumps(body))
+                                       data=json_body)
                 r.raise_for_status()
             except ProtocolError as e:
                 inner = e.args[1]

requirements.txt

@@ -2,4 +2,5 @@ CacheControl>=0.10.2
 requests>=2.10.0
 sseclient>=0.0.12
 future>=0.15.2
-strict-rfc3339>=0.7
+strict-rfc3339>=0.7
+jsonpickle==0.9.3