old_contents: import io
  from setuptools import setup, find_packages
  
  main_ns = {}
  exec(open('dash/version.py').read(), main_ns)  # pylint: disable=exec-used
  
  setup(
      name='dash',
      version=main_ns['__version__'],
      author='chris p',
      author_email='chris@plot.ly',
      packages=find_packages(exclude=['tests*']),
      include_package_data=True,
      license='MIT',
      description=('A Python framework for building reactive web-apps. '
                   'Developed by Plotly.'),
      long_description=io.open('README.md', encoding='utf-8').read(),
      long_description_content_type='text/markdown',
      install_requires=[
          'Flask>=0.12',
          'flask-compress',
          'plotly',
          'dash_renderer',
      ],
      entry_points={
          'console_scripts': [
              'dash-generate-components ='
              ' dash.development.component_generator:cli'
          ]
      },
      url='https://plot.ly/dash',
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Environment :: Web Environment',
          'Framework :: Flask',
          'Intended Audience :: Developers',
          'Intended Audience :: Education',
          'Intended Audience :: Financial and Insurance Industry',
          'Intended Audience :: Healthcare Industry',
          'Intended Audience :: Manufacturing',
          'Intended Audience :: Science/Research',
          'License :: OSI Approved :: MIT License',
          'Programming Language :: Python',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3.7',
          'Topic :: Database :: Front-Ends',
          'Topic :: Office/Business :: Financial :: Spreadsheet',
          'Topic :: Scientific/Engineering :: Visualization',
          'Topic :: Software Development :: Libraries :: Application Frameworks',
          'Topic :: Software Development :: Widget Sets'
      ]
  )
  
new_contents: import io
  from setuptools import setup, find_packages
  
  main_ns = {}
  exec(open('dash/version.py').read(), main_ns)  # pylint: disable=exec-used
  
  setup(
      name='dash',
      version=main_ns['__version__'],
      author='chris p',
      author_email='chris@plot.ly',
      packages=find_packages(exclude=['tests*']),
      include_package_data=True,
      license='MIT',
      description=('A Python framework for building reactive web-apps. '
                   'Developed by Plotly.'),
      long_description=io.open('README.md', encoding='utf-8').read(),
      long_description_content_type='text/markdown',
      install_requires=[
          'Flask>=0.12',
          'flask-compress',
          'plotly',
          'dash_renderer',
          'dash-core-components==0.43.0',
          'dash-html-components==0.13.5',
          'dash-table==3.2.0'
      ],
      entry_points={
          'console_scripts': [
              'dash-generate-components ='
              ' dash.development.component_generator:cli'
          ]
      },
      url='https://plot.ly/dash',
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Environment :: Web Environment',
          'Framework :: Flask',
          'Intended Audience :: Developers',
          'Intended Audience :: Education',
          'Intended Audience :: Financial and Insurance Industry',
          'Intended Audience :: Healthcare Industry',
          'Intended Audience :: Manufacturing',
          'Intended Audience :: Science/Research',
          'License :: OSI Approved :: MIT License',
          'Programming Language :: Python',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3.7',
          'Topic :: Database :: Front-Ends',
          'Topic :: Office/Business :: Financial :: Spreadsheet',
          'Topic :: Scientific/Engineering :: Visualization',
          'Topic :: Software Development :: Libraries :: Application Frameworks',
          'Topic :: Software Development :: Widget Sets'
      ]
  )
  
subject: Add locked dash core libraries to install_requires.