Python “尝试在非包中进行相对导入”，尽管在一个目录中包含 __init__.py 的包
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'Attempted relative import in non-package' although packages with __init__.py in one directory
提问by Alex
I have a module named extended.pywhich contains the following line:
我有一个名为的模块extended.py，其中包含以下行：
from .basic import BasicModule
and the file basic.pyresides in the same directory as does __init__.py. However, when I try to run it as:
并且该文件basic.py与__init__.py. 但是，当我尝试将其运行为：
python extended.py
I get the error:
我收到错误：
ValueError: Attempted relative import in non-package
Also adding the line:
还添加了以下行：
from __future__ import absolute_import
does not solve the problem. Maybe I am too tired to see the obvious - but I don't see the problem here.
不能解决问题。也许我太累了，看不到明显的 - 但我在这里看不到问题。
采纳答案by Martijn Pieters
Relative imports only work for packages, but when you importing in extended.pyyou are running a top-level moduleinstead.
相对导入仅适用于包，但当您导入时，extended.py您正在运行顶级模块。
The current directory may hold a __init__.pyfile but that doesn't make exended.pypart of a package yet.
当前目录可能包含一个__init__.py文件，但它exended.py尚未成为包的一部分。
For something to be considered a package, you need to import the directory nameinstead. The following would work:
对于要被视为包的内容，您需要导入目录名称。以下将起作用：
main.py
packagename\
__init__.py
basic.py
extended.py
then in main.pyput:
然后输入main.py：
import packagename.extended
and only thenis extendedpart of a package and do relative imports work.
只有然后是extended一个包的一部分，做相对导入工作。
The relative import now has something to be relative to, the packagenameparent.
相对进口现在拥有的东西是相对的到的packagename父。
