ImportError: No module named after installing my pypi package

Question

To vim .pypirc in home directory.

[distutils]
index-servers=pypi

[pypi]
repository = https://upload.pypi.org/legacy/
username = xxxx
password = xxxx

The directory structure.

tree /tmp/getHello
/tmp/getHello
├── getHello
│   └── getHello.py
├── README.rst
└── setup.py

The getHello.py.

cat /tmp/getHello/getHello/getHello.py
def say(something):
    print(something)

The tmp/getHello/setup.py.

cat /tmp/getHello/setup.py
from setuptools import setup, find_packages
from codecs import open
from os import path
here = path.abspath(path.dirname(__file__))
with open(path.join(here, 'README.rst'), encoding='utf-8') as f:
    long_description = f.read()
setup(
    name='getHello',
    version='1.0.0',
    description='getHello',
    long_description=long_description,
    url='https://upload.pypi.org/legacy/getHello',
    author='The Python Packaging Authority',
    author_email='[email protected]',
    license='MIT',
    classifiers=[
        'Development Status :: 3 - Alpha',
        'Intended Audience :: Developers',
        'Topic :: Software Development :: Build Tools',
        'License :: OSI Approved :: MIT License',
        'Programming Language :: Python :: 3',
        'Programming Language :: Python :: 3.4',
        'Programming Language :: Python :: 3.5',
        'Programming Language :: Python :: 3.6',
    ],
    keywords='sample setuptools development',
    packages=find_packages(exclude=['contrib', 'docs', 'tests'])
)

Now to make the pypi packages.

cd  /tmp/getHello
python3  setup.py sdist build
python3  setup.py bdist_wheel --universal

To list the file tree .

tree
.
├── build
│   └── bdist.linux-x86_64
├── dist
│   ├── getHello-1.0.0-py2.py3-none-any.whl
│   └── getHello-1.0.0.tar.gz
├── getHello
│   └── getHello.py
├── getHello.egg-info
│   ├── dependency_links.txt
│   ├── PKG-INFO
│   ├── SOURCES.txt
│   └── top_level.txt
├── README.rst
└── setup.py

Upload the source file and whl file.

python3  setup.py  sdist upload
python3  setup.py  bdist_wheel upload

Now there are two files :getHello-1.0.0-py2.py3-none-any.whlin and getHello-1.0.0.tar.gz in my pypi account.

To install the package with pip.

sudo pip3 install getHello

Everything is ready for getHello.

python3
import getHello

An error occurs here:

ImportError: No module named 'getHello'

Why getHello.py can't be packed into getHello-1.0.0-py2.py3-none-any.whlin or getHello-1.0.0.tar.gz ? How to pack getHello.py into getHello-1.0.0-py2.py3-none-any.whlin or getHello-1.0.0.tar.gz ?

Answer 1

To add a __init__.py in getHello:

cd  getHello/getHello
vim  __init__.py
from getHello.say import say