old_contents: from setuptools import setup
  
  setup(
      name='disposable-emails',
      version='0.9',
      description='Weed out disposable email providers with ease',
      url='https://github.com/maxmalysh/disposable-emails',
      author='Max Malysh',
      author_email='github@maxmalysh.com',
      license='MIT',
      packages=['disposable_emails'],
      include_package_data=True,
  )
  
new_contents: from setuptools import setup, find_packages
  
  setup(
      name='disposable-emails',
      version='0.9',
      description='Weed out disposable email providers with ease',
      url='https://github.com/maxmalysh/disposable-emails',
      author='Max Malysh',
      author_email='github@maxmalysh.com',
      license='MIT',
      packages=find_packages(),
      include_package_data=True,
  )
  
subject: Include nested packages in setup.py