Is it okay to skip obscure topics in Mark Lutz's python book?

Question

Python

Hello! Recently started learning python by Mark Lutz. I only read about numeric types, but I don’t understand some topics anymore. Should I try to understand them or can I skip them?

Answer 1

No need.
It is better to dwell on them separately, achieving complete clarity on the issue, until all dark places are illuminated by the bright light of Knowledge.
And then you will build a house where there will be no half of the bricks.

Answer 2

I only read about numeric types, but I don’t understand some topics anymore. Should I try to understand them or can I skip them?

Reading is not enough.
Need to write.

Answer 3

From the description on Amazon:
Complete with quizzes, exercises, and helpful illustrations, this easy-to-follow, self-paced tutorial gets you started with both Python 2.7 and 3.3— the latest releases in the 3.X and 2.X lines— plus all other releases in common use today
Python 2.7 - deprecated as of January 1, 2020
The newest version of Python 3 is 3.9.
Python 3.3 - September 29, 2012.
I would not recommend this book as 5 years already to take for study.