Can't get pytest to recognize nested imports

I am trying to get pytest working on a project I am working on. I've been struggling to find the correct way to import modules into the tests. For example, I have a test_changelog.py file that imports release_all_in_one.changelog_utils but a function in that module calls a function in a different module, jira_utils.py and its failing to find that.

I have tried many different setups of how to setup tests with pytest. I tried using setup.py, different folder locations etc, but I've landed on having the tests in the same directory as the package, as seen in the tree structure. For reference, testing_utils.py imports release_all_in_one.utils and that works fine. I am running it with python -m pytest.

company_release/
├── release_all_in_one
│   ├── changelog_utils.py
│   ├── confluence_email.py
│   ├── confluence_utils.py
│   ├── create_confluence_page.py
│   ├── __init__.py
│   ├── jira_utils.py
│   ├── parse_confluence.py
│   ├── release_all_in_one_openshift.py
│   ├── release_all_in_one.py
│   ├── tag_branch.py
│   ├── templates
│   │   ├── admin_package_template
│   │   ├── base_template
│   │   ├── cdn_package_template
│   │   ├── fe_package_template
│   │   ├── oddjob_package_template
│   │   ├── openshift_template
│   │   └── procedure.json
│   ├── testing.py
│   └── utils.py
├── setup.py
├── seutp.cfg
└── tests
    ├── test_changelog.py
    ├── testing_utils.py
    └── test_utils.py

I would love some advice on how these are supposed to imported correctly. I've read over a lot of documentation with no luck.