Differences between from .. import and import in python

For example, flask,

If you write

From flask import Flask

You can directly use the Flask name.

App = Flask (_ name __)

In fact, it is best to use

From flask import *

Otherwise, some other methods of flask must be added

From flask import Flask, request

It's a lot of trouble, but if you introduce multiple packages at the same time, you should consider whether there will be a duplicate name,

If you only use

Import flask

Then you need to add the name field

App = flask. Flask (_ name __)

 

Of course, it will be a little troublesome to use import, and everything should be written into flask. What, but if two packages have the same method named Flask, you can only use this stupid method,

 

As for require and python, python import is similar to ruby require.