How to use python for machine learning

Question

how to use libraries and algorithms

Answer 1

Best would be to download a proper IDE. I recommend the Anaconda package - its Jupyter Notebook implementation is great for prototyping ML models.
https://www.anaconda.com/download/

It comes with integrated ML-oriented modules and libraries: numpy, pandas, matplotlib, sklearn, scipy and many more, for data mining/parsing (openpyxl, bs4, scrapy)...