Python 2.7无法导入名称<class>

Question

I have a simple module (python 2.7) from which I'm trying to import a class, but I get an error: 我有一个简单的模块（python 2.7），试图从中导入一个类，但出现错误：

ImportError: cannot import name Engine

My code is: 我的代码是：

from components import Engine

and in components: 在组件中：

class Engine(object):
    pass

On the other hand 另一方面

from components import *

works fine 工作正常

What an I doing wrong? 我做错了什么？ Any hints appreciated 任何提示表示赞赏

Answer 1

If you have this structure: 如果您具有以下结构：

.
├── components
│   ├── Engine.py
│   └── __init__.py
└── main.py

And for example main.py is: 例如main.py是：

from components import Engine
print 'Hi'

And Engine.py is: 而Engine.py是：

class Engine(object):
   pass

You mustn't find any problem with import statement. 您一定不会发现import语句有任何问题。 The code run fine: 代码运行良好：

> python main.py 
Hi