具有依赖项初始化错误的自定义包:ModuleNotFoundError 或 ImportError

我正在创建一个具有以下结构的自定义包:

I'm creating a custom package that has the following structure:

test_package
    │   README.md
    │   setup.py
    │
    ├───my_package
    │       my_package.py
    │       __init__.py
    │
    └───tests
            tests.py

我的包依赖于pygdbmi，所以我把它添加到了所需的依赖列表中.

My package depends on pygdbmi, so I added it to the list of required dependencies.

我正在使用 __init__.py 导入模块

I'm using __init__.py to import the modules

__init__.py:

from .my_package import my_class

__version__ = '0.0.1'
__title__ = 'my_package'

我的班级是:

my_package.py:

from pygdbmi.gdbcontroller import GdbController

class my_class:
    def __init__(self):
        print("my_class!!")
        self.gdbmi = GdbController()

问题是当我运行 python setup.py install clean 时，我得到一个 ModuleNotFoundError:

The problem is that when I run python setup.py install clean, I get a ModuleNotFoundError:

python setup.py install clean
Traceback (most recent call last):
  File "setup.py", line 2, in <module>
    import my_package
  File "c:\test_package\my_package\__init__.py", line 1, in <module>
    from .my_package import my_class
  File "c:\test_package\my_package\my_package.py", line 2, in <module>
    from pygdbmi.gdbcontroller import GdbController
ModuleNotFoundError: No module named 'pygdbmi

这很明显，因为 __init__ 正在导入 my_package，它会中断，因为我还没有安装 pygdbmi.

Which is obvious, because __init__ is importing my_package, it breaks because I don't have pygdbmi installed yet.

我试图通过从 __init__.py 中删除导入来解决这个问题:

I tried to fix this by removing the import from __init__.py:

__version__ = '0.0.1'
__title__ = 'my_package'

它安装正确，但现在我无法导入我的包.当我尝试运行一些测试时:

It installs correctly, but now I can't import my package. when I try to run some tests:

python tests.py
Traceback (most recent call last):
  File "tests.py", line 3, in <module>
    from my_package import my_class
ImportError: cannot import name 'my_class' from 'my_package' (C:\Users\lalalala\AppData\Local\Continuum\anaconda3-32\lib\site-packages\my_package-0.0.1-py3.7.egg\my_package\__init__.py)

我该如何解决这个问题?我想保留定义版本等的 __init__ 结构，因为这似乎是 Pythonic 的方式.

How do I fix this? I'd like to keep the __init__ structure of defining the version, etc, as it seems the Pythonic way to do it.

非常感谢！！！

setup.py:

import setuptools
import my_package

with open("README.md", "r") as fh:
    long_description = fh.read()

setuptools.setup(
    # Project information
    name=my_package.__title__,
    version=my_package.__version__,
    long_description_content_type="text/markdown",
    packages=setuptools.find_packages(),
    install_requires=["pygdbmi"],
    python_requires='>=3.7',
    # Tests
    test_suite='tests'
)

my_package.py:

from pygdbmi.gdbcontroller import GdbController

class my_class:
    def __init__(self):
        print("my_class!!")
        self.gdbmi = GdbController()

tests.py:

import unittest

from my_package import my_class

class some_test(unittest.TestCase):
    def test_constructor(self):
        self.assertIsNotNone(my_class())

if __name__ == '__main__':
    unittest.main()