davidsuculum, 
This could be a nice set of resources for using Python in #climate, #climatology and #meteorology.
I link a tutorial for extreme values. It doesn't include "peak over threshold" analysis, but you have pyextremes for that (and R).
Tutorial 4: Return Levels Using Normal and GEV Distributions — Climatematch Academy: Computational Tools for Climate Science
https://comptools.climatematch.io/tutorials/W2D4_ClimateResponse-Extremes%26Variability/student/W2D4_Tutorial4.html
