old_contents: # -*- coding: utf-8 -*-
  # 14-8-8
  # create by: snower
  
  from setuptools import setup
  
  
  setup(
      name='tormysql',
      version='0.4.3',
      packages=['tormysql', 'tormysql.platform'],
      install_requires=[
          'PyMySQL>=0.7.10',
          'greenlet>=0.4.2',
      ],
      author='snower, mosquito',
      author_email='sujian199@gmail.com, me@mosquito.su',
      url='https://github.com/snower/TorMySQL',
      license='MIT',
      keywords=[
          "tornado", "mysql"
      ],
      description='Tornado asynchronous MySQL Driver',
      long_description=open("README.rst").read(),
      zip_safe=False,
  )
  
new_contents: # -*- coding: utf-8 -*-
  # 14-8-8
  # create by: snower
  
  from setuptools import setup
  
  
  setup(
      name='tormysql',
      version='0.4.3',
      packages=['tormysql', 'tormysql.platform'],
      install_requires=[
          'PyMySQL>=0.7.10',
          'greenlet>=0.4.2',
      ],
      extras_require={
          "tornado": ['tornado>=5'],
      },
      author='snower, mosquito',
      author_email='sujian199@gmail.com, me@mosquito.su',
      url='https://github.com/snower/TorMySQL',
      license='MIT',
      keywords=[
          "tornado", "mysql"
      ],
      description='Tornado asynchronous MySQL Driver',
      long_description=open("README.rst").read(),
      zip_safe=False,
  )
  
subject: add tornado require version info