Why is "from tkinter import *" not importing everything?

Question

Python

from tkinter import *
why else is it necessary to import separately from tkinter -> ttk eg:
from tkinter import ttk

just trying to understand

Answer 1

Because when importing , the __init__.py file is triggered , which already contains what will be imported. And ttk is a separate submodule that you need to import yourself

Answer 2

from tkinter import *- you can't do that. Because there can be conflicts when different packages have different classes and methods with the same name.
Great example - How to insert a picture?