Python. Audio input. How to determine the frequency and phase of an audio signal?

Question

Python

Tell me, how can I find out the frequency and phase of the audio signal entering the microphone?
Actually, an example or a search direction is needed. Who can do what :)
I found something similar, but this is not enough for understanding =\
https://www.youtube.com/watch?v=gLBEMceqf2M

Answer 1

Here it seems to be how to read data from a microphone: habrahabr.ru/post/179167
Next, I would look for Fourier transform methods.