old_contents: from setuptools import setup
  
  with open("requirements.txt") as f:
      install_requires = [line.strip() for line in f]
  
  setup(
      name="mailin",
      py_modules=["mailin"],
      install_requires=install_requires
  )
  
new_contents: from setuptools import setup
  
  with open("requirements.txt") as f:
      install_requires = [line.strip() for line in f]
  
  setup(
      name="mailin",
      version="0.0.1",
      py_modules=["mailin"],
      install_requires=install_requires
  )
  
subject: Add an initial version to setup file