Pipx created binary errors out: `module not found`

Question

I have a multi-file system which all depend on each other. An example is this import get_all_files as file_system in the main.py file.

Setups followed

1. Create a setup.py with the configurations

from setuptools import setup

setup(
    name='name',
    version='1.0.0',
    author='etc etc',
    author_email='etc etc',
    description='A tool etc etc',
    packages=['src'],
    entry_points={
        'console_scripts': [
            'eclair = src.main:process_arguments',
        ],
    },
    install_requires=[
        'jinja2',
        'web3',
    ],
)

2. python setup.py sdist bdist_wheel
3. pipx install dist/<name-version-etc>.tar.gz # installs correctly

Error

Traceback (most recent call last):
  File "/opt/homebrew/bin/tool-name", line 5, in <module>
    from src.main import process_arguments
  File "/opt/homebrew/lib/python3.11/site-packages/src/main.py", line 1, in <module>
    import get_all_files as file_system
ModuleNotFoundError: No module named 'get_all_files'

I'm wondering where the error is as using VS Code's Pylint, I am able to ensure none of these errors are occuring outside of this build.