Python-SDK - 3.3.0
## [3.3.0] - October 28th, 2019
### New Features: * Added support for event batching via the event processor. * Events generated by methods like `activate`, `track`, and `is_feature_enabled` will be held in a queue until the configured batch size is reached, or the configured flush interval has elapsed. Then, they will be batched into a single payload and sent to the event dispatcher. * To configure event batching, set the `batch_size` and `flush_interval` properties when initializing instance of [BatchEventProcessor](https://github.com/optimizely/python-sdk/blob/3.3.x/optimizely/event/event_processor.py#L45). * Event batching is disabled by default. You can pass in instance of `BatchEventProcessor` when creating `Optimizely` instance to enable event batching. * Users can subscribe to `LogEvent` notification to be notified of whenever a payload consisting of a batch of user events is handed off to the event dispatcher to send to Optimizely's backend. * Introduced blocking timeout in `PollingConfigManager`. By default, calls to `get_config` will block for maximum of 10 seconds until config is available.
### Bug Fixes: * Fixed incorrect log message when numeric metric is not used. ([#217](https://github.com/optimizely/python-sdk/pull/217))