old_contents: # Copyright 2018 The Cirq Developers
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     https://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import io
  import os
  from setuptools import find_packages, setup
  
  # This reads the __version__ variable from cirq/_version.py
  __version__ = ''
  exec(open('cirq/_version.py').read())
  
  name = 'cirq'
  
  description = ('A framework for creating, editing, and invoking '
                 'Noisy Intermediate Scale Quantum (NISQ) circuits.')
  
  # README file as long_description.
  long_description = io.open('README.rst', encoding='utf-8').read()
  
  # If CIRQ_DEV_VERSION is set then we use cirq-dev as the name of the package
  # and update the version to this value.
  if 'CIRQ_DEV_VERSION' in os.environ:
      name = 'cirq-dev'
      __version__ = os.environ['CIRQ_DEV_VERSION']
      long_description = (
          "**This is a development version of Cirq and may be "
          "unstable.**\n\n**For the latest stable release of Cirq "
          "see ** `here <https://pypi.org/project/cirq>`__.\n" + long_description)
  
  # Read in requirements
  requirements = open('requirements.txt').readlines()
  requirements = [r.strip() for r in requirements]
  contrib_requirements = open('cirq/contrib/contrib-requirements.txt').readlines()
  contrib_requirements = [r.strip() for r in contrib_requirements]
  dev_requirements = open('dev_tools/conf/pip-list-dev-tools.txt').readlines()
  dev_requirements = [r.strip() for r in dev_requirements]
  
  cirq_packages = ['cirq'] + [
      'cirq.' + package for package in find_packages(where='cirq')
  ]
  
  # Sanity check
  assert __version__, 'Version string cannot be empty'
  
  setup(name=name,
        version=__version__,
        url='http://github.com/quantumlib/cirq',
        author='The Cirq Developers',
        author_email='cirq@googlegroups.com',
        python_requires=('>=3.6.0'),
        install_requires=requirements,
        extras_require={
            'contrib': contrib_requirements,
            'dev': dev_requirements,
        },
        license='Apache 2',
        description=description,
        long_description=long_description,
        packages=cirq_packages,
        package_data={
            'cirq.api.google.v1': ['*.proto'],
            'cirq.api.google.v2': ['*.proto'],
        })
  
new_contents: # Copyright 2018 The Cirq Developers
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     https://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import io
  import os
  from setuptools import find_packages, setup
  
  # This reads the __version__ variable from cirq/_version.py
  __version__ = ''
  exec(open('cirq/_version.py').read())
  
  name = 'cirq'
  
  description = ('A framework for creating, editing, and invoking '
                 'Noisy Intermediate Scale Quantum (NISQ) circuits.')
  
  # README file as long_description.
  long_description = io.open('README.rst', encoding='utf-8').read()
  
  # If CIRQ_DEV_VERSION is set then we use cirq-dev as the name of the package
  # and update the version to this value.
  if 'CIRQ_DEV_VERSION' in os.environ:
      name = 'cirq-dev'
      __version__ = os.environ['CIRQ_DEV_VERSION']
      long_description = (
          "**This is a development version of Cirq and may be "
          "unstable.**\n\n**For the latest stable release of Cirq "
          "see**\n`here <https://pypi.org/project/cirq>`__.\n\n" +
          long_description)
  
  # Read in requirements
  requirements = open('requirements.txt').readlines()
  requirements = [r.strip() for r in requirements]
  contrib_requirements = open('cirq/contrib/contrib-requirements.txt').readlines()
  contrib_requirements = [r.strip() for r in contrib_requirements]
  dev_requirements = open('dev_tools/conf/pip-list-dev-tools.txt').readlines()
  dev_requirements = [r.strip() for r in dev_requirements]
  
  cirq_packages = ['cirq'] + [
      'cirq.' + package for package in find_packages(where='cirq')
  ]
  
  # Sanity check
  assert __version__, 'Version string cannot be empty'
  
  setup(name=name,
        version=__version__,
        url='http://github.com/quantumlib/cirq',
        author='The Cirq Developers',
        author_email='cirq@googlegroups.com',
        python_requires=('>=3.6.0'),
        install_requires=requirements,
        extras_require={
            'contrib': contrib_requirements,
            'dev': dev_requirements,
        },
        license='Apache 2',
        description=description,
        long_description=long_description,
        packages=cirq_packages,
        package_data={
            'cirq.api.google.v1': ['*.proto'],
            'cirq.api.google.v2': ['*.proto'],
        })
  
subject: Add spaces to dev string (#1957)