The Python CHIP controller is a library that allows to create a Matter fabric and commission Matter devices with it, as well as communicate with commissioned devices by reading/subscribing and writing Attributes and sending Commands. The Python CHIP controller is based on the native Chip Device Controller library.
The Python CHIP Controller comes with a REPL which allows to explore and use the Python CHIP controller library from a shell. To learn more about the Python CHIP Controller and the REPL, how to build it and use its commands and advanced features, read the following guides: