从不同的包导入python类

Question

这是我的python项目结构，

    test

       cat

         Cat.py

           class Cat
       dog

         Dog.py

           class Dog

将Dog类导入Cat类

时出现模块未找到错误

来自dog.Dog import *

如何解决？

Answer 1

您正在混合概念，请使用：

from dog import Dog

Answer 2

使用

from dog import Dog 

或

from dog import * 

代替。

Answer 3

遵循语法

# To import a module
import [module]

# To import a class from a module
from [module] import [class]

因此，在您的情况下，

# To import a class [Dog] from a module [dog]
from dog import Dog

# To import everything from the module [dog]
import dog             # -> Refer your class as dog.Dog
from dog import *      # -> Refer your class directly as Dog
import dog as d        # -> Refer your class as d.Dog