ModuleNotFoundError: No module named <modulename> after installing custom package with pip

Question

Before asking this question, I have seen the following questions that are somehow similar to my question, but they didn't resolve the existing error:

• ModuleNotFoundError: No module named after pip install
• ImportError: No module… After python setup.py install

I have the following structure:

backbone-project
├── backbone
│   ├── backbone.py
│   ├── cmd_parser.py
│   ├── command_executor.py
│   ├── config_files
│   ├── db_connections
│   ├── extras
│   ├── __init__.py
│   ├── __pycache__
│   ├── query_files
│   ├── templates
│   ├── tests
│   └── utils
├── LICENSE
├── README.md
├── requirements.txt
├── setup.py

and this is my setup.py file:

import setuptools
from backbone.utils.enums import Files, Letters


with open(Files.README.value, Letters.R.value, encoding=Letters.UTF_8.value) as readme_file:
    long_description = readme_file.read()

with open(Files.REQUIREMENTS.value, Letters.R.value, encoding=Letters.UTF_8.value) as requirements_file:
    requirements = requirements_file.read().splitlines()

setuptools.setup(
    name="backbone",
    version="1",
    entry_points={
      "console_scripts": [
          'backbone=backbone.backbone:main'
      ]
    },
    author="Mostafa Ghadimi",
    author_email="my email",
    long_description=long_description,
    install_requirements=requirements,
    # install_requires=requirements,
    long_description_content_type="text/markdown",
    url="url",
    classifiers=[
        "Programming Language :: Python :: 3",
        "License :: OSI Approved :: MIT License",
        "Operating System :: OS Independent",
    ],
    package_dir={"": "backbone"},
    packages=setuptools.find_packages("backbone"),
    python_requires=">=3.6",
    license='MIT',
)

backbone/backbone.py

#!/usr/bin/env python
from cmd_parser import parse_args
from utils.logger import Logger
from utils.enums import Messages


def main():
    logger = Logger(__name__)
    logger.log(Messages.BACKBONE_WELCOME_MSG.value)
    parse_args()


if __name__ == '__main__':
    main()

The problem is that whenever I want to install the package, it is installed successfully, but as the command is being executed, the error is raised:

requirements.txt

git+https://<username>:<password>@<git_repository_url>.git

and install it using the following command:

pip install -r requirements

(It has been installed without any error.)

As I want to use the package (in bash), I face to following error:

Traceback (most recent call last):
  File "/home/user/.local/bin/backbone", line 5, in <module>
    from backbone import main
ImportError: cannot import name 'main' from 'backbone' (unknown location)

How can I resolve this error?

P.S. 1 On local after exporting PYTHONPATH the problem is resolved, but the problem still exists when I want to install the package from git repository!

P.S. 2 I am somehow sure that the problem is with entry_points. I have also tried backbone:main but it doesn't work!

Answer 1

The reason is that there already exist package named 'backbone'. So it installs it from pip. But what you need is local module, which is also called 'backbone'. To fix this, simple type '.backbone' (add dot before the module name) instead of 'backbone'.