BSON Codec for Python

The `bson` library provides an independent codec for the BSON (Binary JSON) serialization format, without depending on MongoDB. It offers functions to efficiently serialize Python data structures into BSON bytes and deserialize BSON data back into Python objects. The current version is 0.5.10. Based on recent GitHub activity and a history of addressing issues, it appears to be actively maintained, though releases are not on a fixed schedule.