Unhandled exception in event consumer. Analytics events were not processed.

[kjwilcox]

When calling launchdarkly_client.toggle(), we often see an error log with the following traceback:

Traceback (most recent call last):
  File "/path/to/virtualenv/lib/python3.5/site-packages/ldclient/event_consumer.py", line 50, in do_send
    data=json.dumps(body))
  File "/usr/local/python/lib/python3.5/json/__init__.py", line 230, in dumps
    return _default_encoder.encode(obj)
  File "/usr/local/python/lib/python3.5/json/encoder.py", line 198, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "/usr/local/python/lib/python3.5/json/encoder.py", line 256, in iterencode
    return _iterencode(o, 0)
  File "/usr/local/python/lib/python3.5/json/encoder.py", line 179, in default
    raise TypeError(repr(o) + " is not JSON serializable")
TypeError: <object object at 0x7f3b18c7c230> is not JSON serializable

The user object we are providing to .toggle() does not contain any non-json-serializable fields. Example: {'anonymous': True, 'key': 'SECRET', 'custom': {'client': 'sandbox', 'roles': (), 'superuser': False}}

We are currently using version 0.20.3, but this problem repros on 3.0.0. Running on Python 3.5.2 on Ubuntu 14.04.

Is there a way for us to opt-out of these failing analytics events? Or can the this client library be updated to fix this error?

[drichelson]

Thanks for reporting this + the details. I'm taking a look right now. Expect an update shortly.

[drichelson]

@kjwilcox do you mind emailing support@launchdarkly.com and we can follow up there?

[kjwilcox]

No problem, email sent.

[drichelson]

https://github.com/launchdarkly/python-client/releases/tag/3.0.1 contains this fix