old_contents: # This file is used to configure the behavior of pytest when using the Astropy
  # test infrastructure. It needs to live inside the package in order for it to
  # get picked up when running the tests inside an interpreter using
  # packagename.test
  
  import os
  
  try:
      from pytest_astropy_header.display import PYTEST_HEADER_MODULES, TESTED_VERSIONS
      ASTROPY_HEADER = True
  except ImportError:
      ASTROPY_HEADER = False
  
  
  def pytest_configure(config):
      if ASTROPY_HEADER:
          config.option.astropy_header = True
  
          # Customize the following lines to add/remove entries from the
          # list of packages for which version numbers are displayed when
          # running the tests.
          PYTEST_HEADER_MODULES['Cython'] = 'Cython'  # noqa
          PYTEST_HEADER_MODULES['Numpy'] = 'numpy'  # noqa
          PYTEST_HEADER_MODULES['Astropy'] = 'astropy'  # noqa
          PYTEST_HEADER_MODULES['Scipy'] = 'scipy'  # noqa
          PYTEST_HEADER_MODULES['Matplotlib'] = 'matplotlib'  # noqa
          PYTEST_HEADER_MODULES['scikit-image'] = 'skimage'  # noqa
          PYTEST_HEADER_MODULES['scikit-learn'] = 'sklearn'  # noqa
          PYTEST_HEADER_MODULES['Astropy'] = 'astropy'  # noqa
          PYTEST_HEADER_MODULES.pop('Pandas', None)  # noqa
          PYTEST_HEADER_MODULES.pop('h5py', None)  # noqa
  
          from . import __version__
          packagename = os.path.basename(os.path.dirname(__file__))
          TESTED_VERSIONS[packagename] = __version__
  
  # Uncomment the last two lines in this block to treat all DeprecationWarnings as
  # exceptions. For Astropy v2.0 or later, there are 2 additional keywords,
  # as follow (although default should work for most cases).
  # To ignore some packages that produce deprecation warnings on import
  # (in addition to 'compiler', 'scipy', 'pygments', 'ipykernel', and
  # 'setuptools'), add:
  #     modules_to_ignore_on_import=['module_1', 'module_2']
  # To ignore some specific deprecation warning messages for Python version
  # MAJOR.MINOR or later, add:
  #     warnings_to_ignore_by_pyver={(MAJOR, MINOR): ['Message to ignore']}
  from astropy.tests.helper import enable_deprecations_as_exceptions  # noqa
  enable_deprecations_as_exceptions()
  
new_contents: # This file is used to configure the behavior of pytest when using the Astropy
  # test infrastructure. It needs to live inside the package in order for it to
  # get picked up when running the tests inside an interpreter using
  # packagename.test
  
  import os
  
  try:
      from pytest_astropy_header.display import PYTEST_HEADER_MODULES, TESTED_VERSIONS
      ASTROPY_HEADER = True
  except ImportError:
      ASTROPY_HEADER = False
  
  
  def pytest_configure(config):
      if ASTROPY_HEADER:
          config.option.astropy_header = True
  
          # Customize the following lines to add/remove entries from the
          # list of packages for which version numbers are displayed when
          # running the tests.
          PYTEST_HEADER_MODULES['Cython'] = 'Cython'  # noqa
          PYTEST_HEADER_MODULES['Numpy'] = 'numpy'  # noqa
          PYTEST_HEADER_MODULES['Astropy'] = 'astropy'  # noqa
          PYTEST_HEADER_MODULES['Scipy'] = 'scipy'  # noqa
          PYTEST_HEADER_MODULES['Matplotlib'] = 'matplotlib'  # noqa
          PYTEST_HEADER_MODULES['scikit-image'] = 'skimage'  # noqa
          PYTEST_HEADER_MODULES['scikit-learn'] = 'sklearn'  # noqa
          PYTEST_HEADER_MODULES.pop('Pandas', None)  # noqa
          PYTEST_HEADER_MODULES.pop('h5py', None)  # noqa
  
          from . import __version__
          packagename = os.path.basename(os.path.dirname(__file__))
          TESTED_VERSIONS[packagename] = __version__
  
  # Uncomment the last two lines in this block to treat all DeprecationWarnings as
  # exceptions. For Astropy v2.0 or later, there are 2 additional keywords,
  # as follow (although default should work for most cases).
  # To ignore some packages that produce deprecation warnings on import
  # (in addition to 'compiler', 'scipy', 'pygments', 'ipykernel', and
  # 'setuptools'), add:
  #     modules_to_ignore_on_import=['module_1', 'module_2']
  # To ignore some specific deprecation warning messages for Python version
  # MAJOR.MINOR or later, add:
  #     warnings_to_ignore_by_pyver={(MAJOR, MINOR): ['Message to ignore']}
  from astropy.tests.helper import enable_deprecations_as_exceptions  # noqa
  enable_deprecations_as_exceptions()
  
subject: Remove extraneous line