RPi.version
This library provides a break down of the new 32bit revision bitfield, detailing the Pi type, origins, amount of memory and CPU details.
Reference
Start with:
import RPi.version
Processor version:
RPi.version.processor
Memory amount ( in MB ):
RPi.version.memory
Raspberry Pi Type:
RPi.version.type
Manufacturer:
RPi.version.manufacturer
Revision:
RPi.version.revision
Pi Model, returns either A, B or CM for Computer Module.
RPi.version.model
Pi version, returns either 1 or 2 for Pi 2
RPi.version.version
Info, returns all info as a dictionary
RPi.version.info