试图从另一个文件导入类，但我的测试中断

Question

我试图使用prettyconf-https://github.com/osantana/prettyconf-来使用.env文件

我创建了一个config.py文件，并将其放在脚本的同一文件夹中

我的config.py是这个：

from prettyconf import config


class Settings:
    ENVIRONMENT = config(
        'ENVIRONMENT',
        default='dev',
        cast=config.option({'dev': 'dev', 'int': 'int', 'prod': 'prod'}),
    )

    LOG_LEVEL = config('LOG_LEVEL', default='INFO')
 

settings = Settings()

在我的脚本中，我以以下方式导入config.py：

from cl_uploader.config import settings

但我得到了这个错误消息：

Traceback (most recent call last):
  File "cl_uploader.py", line 7, in <module>
    from cl_uploader.config import settings
  File "/home/myfolder/Doing/folder/cl_uploader/cl_uploader.py", line 7, in <module>
    from cl_uploader.config import settings
ModuleNotFoundError: No module named 'cl_uploader.config'; 'cl_uploader' is not a package

我尝试更改为这样的相对路径：

from .config import settings

但我有一个错误：

Traceback (most recent call last):
  File "cl_uploader.py", line 7, in <module>
    from .config import settings
ImportError: attempted relative import with no known parent package

但如果是这样的一个let：

from config import settings

它起作用了！但是

我的测试开始中断，我收到以下消息：

____________________________ ERROR collecting tests/test_cl_uploader.py _____________________________
ImportError while importing test module '/home/myfolder/Doing/folder/tests/test_cl_uploader.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
../../.cache/pypoetry/virtualenvs/cl-uploader-12nYBdPj-py3.8/lib/python3.8/site-packages/_pytest/python.py:511: in _importtestmodule
    mod = self.fspath.pyimport(ensuresyspath=importmode)
../../.cache/pypoetry/virtualenvs/cl-uploader-12nYBdPj-py3.8/lib/python3.8/site-packages/py/_path/local.py:704: in pyimport
    __import__(modname)
../../.cache/pypoetry/virtualenvs/cl-uploader-12nYBdPj-py3.8/lib/python3.8/site-packages/_pytest/assertion/rewrite.py:152: in exec_module
    exec(co, module.__dict__)
tests/test_cl_uploader.py:10: in <module>
    from cl_uploader.cl_uploader import check_stack_exists
cl_uploader/cl_uploader.py:7: in <module>
    from config import settings
E   ModuleNotFoundError: No module named 'config'
====================================== short test summary info ======================================
ERROR tests/test_cl_uploader.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
========================================= 1 error in 0.25s ==========================================

“我的树”文件夹的设置方式如下：

.
├── cl_uploader
│   ├── cl_uploader.py
│   ├── config.py
│   ├── __init__.py
│   └── resources
│       └── teste.yaml
├── file.tmp
├── local.env
├── Makefile
├── poetry.lock
├── pyproject.toml
├── README.md
└── tests
    ├── __init__.py
    └── test_cl_uploader.py

Answer 1

您的包被称为cl_uploader，并且在这个包中有一个模块cl_uploader。避免名称重复

默认情况下，python将首先查找当前工作目录（如果它可以找到模块或包），然后再查找其他位置

因此，当您在cl_uploader文件夹中时，它将拾取cl_uploader模块而不是包。如果你在外面，它会取包裹

总之：将cl_uploader.py重命名为其他名称，一切都会正常工作

Answer 2

您已经在cl_uploader文件夹中。试试看：from config import settings

在__init__.py中添加以下内容：

import os, sys
sys.path.append(os.path.dirname(os.path.realpath(__file__)))

然后，此目录中的所有文件都将位于sys.path。可能需要将文件名更改为cl_config.py以避免冲突