__init__.py未检测到整个模块 [英] Entire module is not detected by __init__.py

问题描述

我有一个相对较小的python程序，其设置如下:

I have a relatively small python program which is setup like this

Root
  --Network
    --DTO
      Lots of py files which contain classes.
  Other py files in the project

在网络和DTO文件夹中，都有一个空的__init__.py.

Both in the Network and the DTO folder there is an empty __init__.py.

当我执行from Network import DTO，import Network，Import Network.DTO时，我完全无法使用该模块.调试器说它完全是空的.根目录包含我实际上正在执行的py文件.

When I do from Network import DTO, import Network, Import Network.DTO I cannot use the module at all. The debugger says it's completely empty. The root contains the py file I am actually executing.

Network和DTO文件夹中的__init__.py文件都被编译为pyc，而并非所有实际的python文件都被编译.

Both the the __init__.py files in the Network and DTO folder are compiled to pyc while all actual python files aren't.

有人知道我在做什么错吗?我正在使用python 2.7

Does anyone have any idea what I am doing wrong? I am using python 2.7

推荐答案

为此，您需要在__init__.py中导入子模块.如果您有很多子模块，则很难为每个子模块添加导入.对于许多子模块(通常)，请使用__all__.

For that, you need to import the submodules in your __init__.py. It becomes more difficult to add an import for every submodule if you have many, as you do. In the case of many submodules (and in general), use __all__.

以下是Root/Network/DTO/__init__.py的示例:

__all__ = [
    'sample_module',
    ...
]

for module in __all__:
    __import__('DTO.%s' % module)

现在您可以执行from Network.DTO import sample_module.同样的想法也适用于您的其他模块.

Now you can do from Network.DTO import sample_module. The same idea holds for your other modules, as well.

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