old_contents: #!/usr/bin/env python
  import os
  from setuptools import setup
  
  
  def read(fname):
      with open(os.path.join(os.path.abspath(os.path.dirname(__file__)), fname), 'r') as infile:
          content = infile.read()
      return content
  
  setup(
      name='marshmallow-polyfield',
      version=2.0,
      description='An unoffical extension to Marshmallow to allow for polymorphic fields',
      long_description=read('README.md'),
      author='Matt Bachmann',
      author_email='bachmann.matt@gmail.com',
      url='https://github.com/Bachmann1234/marshmallow-polyfield',
      packages=['marshmallow_polyfield', 'tests'],
      license=read('LICENSE'),
      keywords=('serialization', 'rest', 'json', 'api', 'marshal',
                'marshalling', 'deserialization', 'validation', 'schema'),
      install_requires=['marshmallow>=2.0.0b5'],
      classifiers=[
          'Intended Audience :: Developers',
          'License :: OSI Approved :: Apache Software License',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.6',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: Implementation :: CPython',
          'Programming Language :: Python :: Implementation :: PyPy',
      ],
  )
  
new_contents: #!/usr/bin/env python
  import os
  from setuptools import setup
  
  
  def read(fname):
      with open(os.path.join(os.path.abspath(os.path.dirname(__file__)), fname), 'r') as infile:
          content = infile.read()
      return content
  
  setup(
      name='marshmallow-polyfield',
      version=2.1,
      description='An unoffical extension to Marshmallow to allow for polymorphic fields',
      long_description=read('README.md'),
      author='Matt Bachmann',
      author_email='bachmann.matt@gmail.com',
      url='https://github.com/Bachmann1234/marshmallow-polyfield',
      packages=['marshmallow_polyfield', 'tests'],
      license=read('LICENSE'),
      keywords=('serialization', 'rest', 'json', 'api', 'marshal',
                'marshalling', 'deserialization', 'validation', 'schema'),
      install_requires=['marshmallow>=2.0.0b5'],
      classifiers=[
          'Intended Audience :: Developers',
          'License :: OSI Approved :: Apache Software License',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.6',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: Implementation :: CPython',
          'Programming Language :: Python :: Implementation :: PyPy',
      ],
  )
  
subject: Increment version