old_contents: from setuptools import setup, find_packages
  
  setup(
    name='guestbook',
    version='1.0.0',
    packages=find_packages(),
    include_package_data=True,
    install_requires=[
      'Flask',
    ],
    entry_points="""
      [console_scripts]
      guestbook = guestbook:main
    """,
  )
  
new_contents: import os
  from setuptools import setup, find_packages
  
  
  def read_file(filename):
      basepath = os.path.dirname(os.path.dirname(__file__))
      filepath = os.path.join(basename, filename)
      if os.path.exists(filepath):
          return open(filepath).read()
      else:
          return ''
  
  
  setup(
    name='guestbook',
    version='1.0.0',
    description='A guestbook web application.',
    long_description=read_file('README.md'),
    author='yhoshino11',
    author_email='yhoshino11@gmail.com',
    url='https://github.com/yhoshino11/GuestBook.git',
    classifiers=[
      'Development Status :: 4 - beta',
      'Framework :: Flaskk',
      'License :: MIT',
      'Programming Language :: Python',
      'Programming Language :: Python :: 2.7',
    ],
    packages=find_packages(),
    include_package_data=True,
    keywords=['web', 'guestbook'],
    license='MIT License',
    install_requires=[
      'Flask',
    ],
    entry_points="""
      [console_scripts]
      guestbook = guestbook:main
    """,
  )
  
subject: Add long description to setup.py