Good book "Introduction to Python3", N selection (N = 1) where the explanation has failed.

Overview

I think the following books are good books. This is the first book I read while studying Python. This book was a good book, so I feel like I'm familiar with Python (until now). Thanks.

** "Introduction to Python 3" O'Reilly Japan (February 3, 2017, first edition, sixth edition) **

here, I think that the explanation has failed for a moment, so I will describe it. I've forgotten quite a bit, but when I notice it, I'll add it to this article.

• If there is a new version, I would like to take a look at it as well.

Failure 1

Excerpt quote

Below, the relevant book is quoted

Why do you need an empty string? If you want to assemble a new string from another string, you first need a blank note.

>>> bottles = 99 >>> base = '' \ >>> base + ='current inventory:' # inventory >>> base += str(bottles) >>> base 'current inventory: 99'

Description Failure details

In the case of the above example, ** I think it is not necessary to have an empty string. ** ** Below ↓.

>>> bottles = 99
>>> base = 'current inventory: ' #stock
>>> base += str(bottles)
>>> base
'current inventory: 99'

Proposal for improvement of explanation

I don't know what I want to explain. .. .. (I will omit the improvement plan.)

Summary

If you have any comments, please let us know. : candy: I just wrote an article (like a good idea?) To get more familiar with good books. Also, if I find something, I will add it. Even within the range I have noticed so far, I think there were certainly some.