old_contents: #!/usr/bin/env python
  
  import unittest
  
  from setuptools import setup
  
  
  def pccora_test_suite():
      test_loader = unittest.TestLoader()
      test_suite = test_loader.discover('tests', pattern='test_*.py')
      return test_suite
  
  
  test_requirements = []
  
  install_requires = [
      'construct==2.5.1'
  ]
  
  extras_require = {
      'scripts': [
          'numpy',
          'netcdf4'
      ]
  }
  
  setup(name='pccora',
        version='0.3',
        description='PC-CORA sounding data files parser for Python',
        url='http://github.com/niwa/pccora',
        author='Bruno P. Kinoshita',
        author_email='brunodepaulak@yahoo.com.br',
        license='MIT',
        keywords=['sounding file', 'radiosonde', 'vaisala', 'pccora', 'atmosphere'],
        packages=['pccora'],
        zip_safe=False,
        tests_require=test_requirements,
        test_suite='setup.pccora_test_suite',
        install_requires=[
                             'construct==2.5.1'
                         ] + test_requirements,
        extras_require=extras_require
        )
  
new_contents: #!/usr/bin/env python
  
  import unittest
  
  from setuptools import setup
  
  
  def pccora_test_suite():
      test_loader = unittest.TestLoader()
      test_suite = test_loader.discover('tests', pattern='test_*.py')
      return test_suite
  
  
  test_requirements = []
  
  install_requires = [
      'construct==2.5.1'
  ]
  
  extras_require = {
      'scripts_linux': [
          'jinja2',
          'netcdf4',
          'numpy',
          'pytz'
      ],
      'scripts_win32': [
          'plac'
      ]
  }
  
  setup(name='pccora',
        version='0.3',
        description='PC-CORA sounding data files parser for Python',
        url='http://github.com/niwa/pccora',
        author='Bruno P. Kinoshita',
        author_email='brunodepaulak@yahoo.com.br',
        license='MIT',
        keywords=['sounding file', 'radiosonde', 'vaisala', 'pccora', 'atmosphere'],
        packages=['pccora'],
        zip_safe=False,
        test_suite='setup.pccora_test_suite',
        tests_require=test_requirements,
        install_requires=install_requires,
        extras_require=extras_require
        )
  
subject: Add more specific installation dependencies