SQLAlchemy：有“全球”进口声明吗？

Question

SQLAlchemy has a lot of import statements, eg

from SQLAlchemy import .....

Is there a "global" import statement that imports everything?

Answer 1

The syntax

from <module> import <symbol>

is just one othe ways python offers to import libraries. Asexplained in the official documentation the expression

import module [as identifier]

is the common way to import all symbols of a module.

---

Alternatively you can import all symbols of a specific library using * :

>>> from sqlalchemy import *
>>> sqlalchemy.__version__
'1.3.17'
>>> engine = create_engine('sqlite:///:memory:', echo=True)
>>>