<filename>src/project/some_package/script2.py
from project.utils.neat_tool import thing_doer

def main():
    """ Does a thing! """
    thing_doer()

if __name__ == "__main__":
    main()

<filename>src/project/some_package/script2.py
from project.utils.neat_tool import thing_doer

def main():
    """ Does a thing! """
    thing_doer()

if __name__ == "__main__":
    main()

Does a thing!