Python 正在创建 pip 包 - 未找到模块

Question

我正在尝试创建一个 python 包来分发我的代码。我在创建包和安装创建的包时没有收到任何错误。

但是，在我尝试导入包时安装后出现错误 ModuleNotFoundError:

代码如下

hello_world.py

class HelloWorld:
    def print_msg(self):
        print("Hello World")

setup.py

from setuptools import setup, find_packages
setup(
    name = "HelloWorld",
    version = "0.1",
    packages = find_packages(),
)

创建包

▶ python setup.py bdist_wheel
running bdist_wheel
running build
installing to build/bdist.macosx-10.14-x86_64/wheel
running install
running install_egg_info
running egg_info
writing HelloWorld.egg-info/PKG-INFO
writing dependency_links to HelloWorld.egg-info/dependency_links.txt
writing top-level names to HelloWorld.egg-info/top_level.txt
reading manifest file 'HelloWorld.egg-info/SOURCES.txt'
writing manifest file 'HelloWorld.egg-info/SOURCES.txt'
Copying HelloWorld.egg-info to build/bdist.macosx-10.14-x86_64/wheel/HelloWorld-0.1-py3.7.egg-info
running install_scripts
creating build/bdist.macosx-10.14-x86_64/wheel/HelloWorld-0.1.dist-info/WHEEL
creating 'dist/HelloWorld-0.1-py3-none-any.whl' and adding 'build/bdist.macosx-10.14-x86_64/wheel' to it
adding 'HelloWorld-0.1.dist-info/METADATA'
adding 'HelloWorld-0.1.dist-info/WHEEL'
adding 'HelloWorld-0.1.dist-info/top_level.txt'
adding 'HelloWorld-0.1.dist-info/RECORD'
removing build/bdist.macosx-10.14-x86_64/wheel

安装包

~/PycharmProjects/test_dist ▶ pip install dist/HelloWorld-0.1-py3-none-any.whl
Processing ./dist/HelloWorld-0.1-py3-none-any.whl
Installing collected packages: HelloWorld
Successfully installed HelloWorld-0.1

~/PycharmProjects/test_dist ▶ pip freeze
HelloWorld==0.1

导入模块时出错

>>> import HelloWorld
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'HelloWorld'

Answer 1

hello_world.py在哪里？它位于 setup.py 旁边的根文件夹中吗？或者在某个子目录中？我怀疑是前者。这意味着您没有任何包，所以 find_packages() returns 一个空列表所以 setuptools 不要将任何代码打包到包中。

您的 hello_world.py 不是包（包含文件 __init__.py 的目录），它是一个独立模块，此类模块必须使用 py_modules 打包。你应该这样写 setup.py:

from setuptools import setup

setup(
    name = "HelloWorld",
    version = "0.1",
    py_modules = ['hello_world'],
)

Python 正在创建 pip 包 - 未找到模块

Python creating pip package - module not found

python

pip

setup.py

python-3.x