old_contents: from setuptools import setup, find_packages
  
  
  setup(
      name='opentracing_instrumentation',
      version='2.4.1.dev0',
      author='Yuri Shkuro',
      author_email='ys@uber.com',
      description='Tracing Instrumentation using OpenTracing API (http://opentracing.io)',
      license='MIT',
      url='https://github.com/uber-common/opentracing-python-instrumentation',
      keywords=['opentracing'],
      classifiers=[
          'Development Status :: 3 - Alpha',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: MIT License',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: Implementation :: PyPy',
          'Topic :: Software Development :: Libraries :: Python Modules',
      ],
      packages=find_packages(exclude=['tests', 'tests.*']),
      include_package_data=True,
      zip_safe=False,
      platforms='any',
      install_requires=[
          'future',
          'futures;python_version<"3"',
          'wrapt',
          'tornado>=4.1',
          'contextlib2',
          'opentracing>=1.1,<1.3',
          'six',
      ],
      extras_require={
          'tests': [
              'coveralls',
              'doubles',
              'flake8<3',  # see https://github.com/zheller/flake8-quotes/issues/29
              'flake8-quotes',
              'mock<1.1.0',
              'pytest>=3.0.0',
              'pytest-cov',
              'pytest-localserver',
              'pytest-mock',
              'pytest-tornado',
              'basictracer>=2.1,<2.2',
              'redis',
              'Sphinx',
              'sphinx_rtd_theme',
          ]
      },
  )
  
new_contents: from setuptools import setup, find_packages
  
  
  setup(
      name='opentracing_instrumentation',
      version='2.4.1.dev0',
      author='Yuri Shkuro',
      author_email='ys@uber.com',
      description='Tracing Instrumentation using OpenTracing API (http://opentracing.io)',
      license='MIT',
      url='https://github.com/uber-common/opentracing-python-instrumentation',
      keywords=['opentracing'],
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: MIT License',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: Implementation :: PyPy',
          'Topic :: Software Development :: Libraries :: Python Modules',
      ],
      packages=find_packages(exclude=['tests', 'tests.*']),
      include_package_data=True,
      zip_safe=False,
      platforms='any',
      install_requires=[
          'future',
          'wrapt',
          'tornado>=4.1,<5',
          'contextlib2',
          'opentracing>=1.1,<2',
          'six',
      ],
      extras_require={
          'tests': [
              'coveralls',
              'doubles',
              'flake8<3',  # see https://github.com/zheller/flake8-quotes/issues/29
              'flake8-quotes',
              'mock<1.1.0',
              'pytest>=3.0.0',
              'pytest-cov',
              'pytest-localserver',
              'pytest-mock',
              'pytest-tornado',
              'basictracer>=2.1,<2.2',
              'redis',
              'Sphinx',
              'sphinx_rtd_theme',
          ]
      },
  )
  
subject: Remove concurrent.futures dependency (#47)