Hjælp til python

Hejsa, jeg står med et problem til en opgave i python og håber der er nogen som kan hjælpe. Jeg vedhæfter en zip fil med data i. 

You have to use your knowledge of modular programming and visualization in Python, you should use the series data set available. By default, the assignments assume that you use matplotlib, but if you prefer to use another library that is a fully acceptable solution.

1. Custom Plotting Function OR Class

Write a function or a class that can take a (time) series and a filename as input and generates a series visualization that is stored under the filename.