A microPython port of the AdaFruit CircuitPython module for the SI5351 clock generator. See here for the original code.
Additional inspiration came from this microPython port of the original AdaFruit Arduino code, particular regarding the I2C interface in microPython and the example code.
The putative advantage of this code is:
I2C
from the microPython environment.
Contributions and improvements are welcome, but I will ask you to agree to the licensing of this module.