If your goal is to write IOCs, see Input-Output Controllers (IOCs).
Caproto includes three implementations of a Channel Access server for three different Python concurrency libraries:
asyncio (built in to Python)
To learn more about concurrency in Python (and in general) we recommend these introductory resources, suggested by a caproto user:
The IOC code abstracts out the particular server implementation,
so IOC authors do not need to interact with the server API directly. The
low-level server API is still experimental and subject to change, and it is not
yet documented here. We refer interested developers to the source code in