old_contents: '''
  loan_payoff_tools: Simulates multiple different scenarios in which to payoff loans.
  
  Note that "python setup.py test" invokes pytest on the package. With appropriately
  configured setup.cfg, this will check both xxx_test modules and docstrings.
  
  Copyright 2014, Phillip Green II.
  Licensed under MIT.
  '''
  from codecs import open
  from os import path
  import sys
  
  from setuptools import setup, find_packages
  from setuptools.command.test import test as TestCommand
  
  
  # This is a plug-in for setuptools that will invoke py.test
  # when you run python setup.py test
  class PyTest(TestCommand):
      def finalize_options(self):
          TestCommand.finalize_options(self)
          self.test_args = []
          self.test_suite = True
  
      def run_tests(self):
          import pytest  # import here, because outside the required eggs aren't loaded yet
          sys.exit(pytest.main(self.test_args))
  
  here = path.abspath(path.dirname(__file__))
  
  with open(path.join(here, 'DESCRIPTION.rst'), encoding='utf-8') as f:
      long_description = f.read()
  
  setup(
      name='loan_payoff_tools',
  
      version='0.1.0',
  
      description='Simulates multiple different scenarios in which to payoff loans.',
      long_description=long_description,
  
      url='https://github.com/phillipgreenii/optimize_loan_payoff',
  
      author='Phillip Green II',
      author_email='phillip.green.ii@gmail.com',
  
      license='MIT',
  
      classifiers=[
          'Development Status :: 3 - Alpha',
  
          'Intended Audience :: Developers',
          'Topic :: Office/Business :: Financial',
          'Topic :: Other/Nonlisted Topic',
  
          'Operating System :: MacOS :: MacOS X',
          'Operating System :: Microsoft :: Windows',
          'Operating System :: POSIX',
  
          'License :: OSI Approved :: MIT License',
  
          'Programming Language :: Python',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7'
      ],
  
      keywords='loans payoff simulate debt college',
  
      packages=find_packages(exclude=['examples', 'tests']),
  
      include_package_data=True,
  
      install_requires=[],
  
      tests_require=['pytest'],
      cmdclass={'test': PyTest}
  )
  
new_contents: '''
  loan_payoff_tools: Simulates multiple different scenarios in which to payoff loans.
  
  Note that "python setup.py test" invokes pytest on the package. With appropriately
  configured setup.cfg, this will check both xxx_test modules and docstrings.
  
  Copyright 2014, Phillip Green II.
  Licensed under MIT.
  '''
  from codecs import open
  from os import path
  import sys
  
  from setuptools import setup, find_packages
  from setuptools.command.test import test as TestCommand
  
  
  # This is a plug-in for setuptools that will invoke py.test
  # when you run python setup.py test
  class PyTest(TestCommand):
      def finalize_options(self):
          TestCommand.finalize_options(self)
          self.test_args = []
          self.test_suite = True
  
      def run_tests(self):
          import pytest  # import here, because outside the required eggs aren't loaded yet
          sys.exit(pytest.main(self.test_args))
  
  here = path.abspath(path.dirname(__file__))
  
  with open(path.join(here, 'DESCRIPTION.rst'), encoding='utf-8') as f:
      long_description = f.read()
  
  setup(
      name='loan_payoff_tools',
  
      version='0.1.0',
  
      description='Simulates multiple different scenarios in which to payoff loans.',
      long_description=long_description,
  
      url='https://github.com/phillipgreenii/optimize_loan_payoff',
  
      author='Phillip Green II',
      author_email='phillip.green.ii@gmail.com',
  
      license='MIT',
  
      classifiers=[
          'Development Status :: 3 - Alpha',
  
          'Intended Audience :: Developers',
          'Topic :: Office/Business :: Financial',
          'Topic :: Other/Nonlisted Topic',
  
          'Operating System :: MacOS :: MacOS X',
          'Operating System :: Microsoft :: Windows',
          'Operating System :: POSIX',
  
          'License :: OSI Approved :: MIT License',
  
          'Programming Language :: Python',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7'
      ],
  
      keywords='loans payoff simulate debt college',
  
      packages=find_packages(exclude=['examples', 'tests']),
  
      include_package_data=True,
  
      install_requires=[],
  
      tests_require=['pytest'],
      cmdclass={'test': PyTest},
  
      extras_require = {
          'png':  ["matplotlib"]
      }
  )
  
subject: add matplotlib as optional dependency