Problems with pip und Command line

Question

I am trying to create a Python pip package. This works also well. I can successfully upload and download the package and use it in the Python code. What I can't do is to use the Python package via the command line. In another StackOverflow post I found the link to a tutorial. I tried to follow it. Obviously I made a mistake. Can you guys help me please ? Installation of the package via pip here you can see that the installation worked. Unfortunately, not the whole script fit on the image. Pip does not find the package. Unfortunately, I can't embed the images directly, so I'll just embed them as links.

I have created a simple Python package. It represents here only an example. Here you can see the structure of the folder

Riffecs
|   .gitignore
|   .pylintrc
|   LICENSE
|   README.md
|   requirements.txt
|   setup.py
|
|
\---riffecs
        __init__.py
        __main__.py

Here are the basic files shown.

main.py

from . import hello_world

if __name__ == '__main__':
    hello_world()

and init.py

def hello_world():
    print("Hello world")

In the following you can see the "setup.py". I am of the opinion that I have followed the instructions. But obviously I made a mistake somewhere. Can you please help me to correct this mistake.

import io
import os
import setuptools


def read_description():
    url = "README.md"
    """ Read and Return the description """
    return io.open(os.path.join(os.path.dirname(__file__), url), encoding="utf-8").read()


def def_requirements():
    """ Check PIP Requirements """
    with open('requirements.txt', encoding='utf-8') as file_content:
        pip_lines = file_content.read().splitlines()
    return pip_lines


setuptools.setup(
    name="riffecs",
    version='0.0.3',
    description='test',
    entry_points={'console_scripts': ['hello-world=riffecs:hello_world',]},
    long_description=read_description(),
    long_description_content_type="text/markdown",
    license="MIT",
    keywords="test - riffecs",
    url="https://github.com/Riffecs/riffecs",
    packages=["riffecs"],
    install_requires=def_requirements(),
    python_requires=">=3.6",
    classifiers=[
        "Development Status :: 4 - Beta",
        "Intended Audience :: Developers",
        "Intended Audience :: Science/Research",
        "License :: OSI Approved :: MIT License",
        "Operating System :: OS Independent",
        "Programming Language :: Python",
        "Programming Language :: Python :: 3.9",
        "Programming Language :: Python :: 3.10",
    ],
)

Answer 1

In your setup.py file you have this line...

entry_points={'console_scripts': ['hello-world=riffecs:hello_world',]},

This is the entry point to calling you package via command line. This configuration is asking the entry point to be hello-world, which I tried and it runs fine.

In your image however you run riffecx which is not configured as an entrypoint to the package.

If you wanted the entrypoint to be riffecx. change the line to:

entry_points={'console_scripts': ['riffecx=riffecs:hello_world']},

Hope this helped.