使用[import package]而非[from package import package]设置python

Question

上传到pypi后使用我的库时，我必须使用from package import package，而不仅仅是import package。我该如何更改？

我的setup.py文件：

import pathlib
from setuptools import setup

# The directory containing this file
HERE = pathlib.Path(__file__).parent

# The text of the README file
README = (HERE / "README.md").read_text()

# This call to setup() does all the work
setup(
    name="cool-library",
    version="0.5.3",
    description="Libary",
    long_description=README,
    long_description_content_type="text/markdown",
    url="https://github.com/user/repo",
    author="Author",
    author_email="user@site.com",
    license="MIT",
    classifiers=[
        "License :: OSI Approved :: MIT License",
        "Programming Language :: Python :: 3",
        "Programming Language :: Python :: 3.7",
    ],  
    packages=["mylib"],
    include_package_data=True,
    install_requires=[],
    entry_points={
        "console_scripts": [
            "cool-library=mylib.__main__:main",
        ]   
    },  
)

这是目录布局：

cool-library
├── README.md
├── setup.py
├── mylib
│   ├── __main__.py
│   └── mylib.py

如何重新排列以便可以直接导入？我尝试做package_dir = {'':'mylib'}，但这对我没有用。