old_contents: #!/usr/bin/env python3
  
  from setuptools import find_packages
  from setuptools import setup
  
  setup(
      name='ament_package',
      version='0.0.0',
      packages=find_packages(exclude=['test']),
      author='Dirk Thomas',
      author_email='dthomas@osrfoundation.org',
      maintainer='Dirk Thomas',
      maintainer_email='dthomas@osrfoundation.org',
      url='https://github.com/ament/ament_package/wiki',
      download_url='https://github.com/ament/ament_package/releases',
      keywords=['ROS'],
      classifiers=[
          'Intended Audience :: Developers',
          'License :: OSI Approved :: Apache Software License',
          'Programming Language :: Python',
          'Topic :: Software Development',
      ],
      description='Ament is a build system for federated packages.',
      long_description='''\
  Ament defines metainformation for packages, their dependencies,
  and provides tooling to build these federated packages together.''',
      license='Apache License, Version 2.0',
      test_suite='test',
      package_data={'': [
          'template/environment_hook/*',
          'template/package_level/*',
          'template/prefix_level/*',
      ]},
  )
  
new_contents: from setuptools import find_packages
  from setuptools import setup
  
  setup(
      name='ament_package',
      version='0.0.0',
      packages=find_packages(exclude=['test']),
      author='Dirk Thomas',
      author_email='dthomas@osrfoundation.org',
      maintainer='Dirk Thomas',
      maintainer_email='dthomas@osrfoundation.org',
      url='https://github.com/ament/ament_package/wiki',
      download_url='https://github.com/ament/ament_package/releases',
      keywords=['ROS'],
      classifiers=[
          'Intended Audience :: Developers',
          'License :: OSI Approved :: Apache Software License',
          'Programming Language :: Python',
          'Topic :: Software Development',
      ],
      description='Ament is a build system for federated packages.',
      long_description='''\
  Ament defines metainformation for packages, their dependencies,
  and provides tooling to build these federated packages together.''',
      license='Apache License, Version 2.0',
      test_suite='test',
      package_data={'': [
          'template/environment_hook/*',
          'template/package_level/*',
          'template/prefix_level/*',
      ]},
  )
  
subject: remove unnecessary shebang line