old_contents: # This file is used to configure the behavior of pytest when using the Astropy
  # test infrastructure.
  
  from astropy.version import version as astropy_version
  if astropy_version < '3.0':
      # With older versions of Astropy, we actually need to import the pytest
      # plugins themselves in order to make them discoverable by pytest.
      from astropy.tests.pytest_plugins import *
  else:
      # As of Astropy 3.0, the pytest plugins provided by Astropy are
      # automatically made available when Astropy is installed. This means it's
      # not necessary to import them here, but we still need to import global
      # variables that are used for configuration.
      from astropy.tests.plugins.display import PYTEST_HEADER_MODULES, TESTED_VERSIONS
      try:
          # The astropy test runner sets up the header automatically,
          # we should import it only when runnig pytest directly.
          _ASTROPY_TEST_
      except NameError:
          from astropy.tests.plugins.display import pytest_report_header
  
  from astropy.tests.helper import enable_deprecations_as_exceptions
  
  ## Uncomment the following line 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']}
  enable_deprecations_as_exceptions()
  
  # Uncomment and customize the following lines to add/remove entries from
  # the list of packages for which version numbers are displayed when running
  # the tests. Making it pass for KeyError is essential in some cases when
  # the package uses other astropy affiliated packages.
  try:
      PYTEST_HEADER_MODULES['Cython'] = 'Cython'  # noqa
      PYTEST_HEADER_MODULES['Astropy'] = 'astropy'  # noqa
      PYTEST_HEADER_MODULES['scikit-image'] = 'skimage'  # noqa
      PYTEST_HEADER_MODULES['scikit-learn'] = 'sklearn'  # noqa
      del PYTEST_HEADER_MODULES['h5py']  # noqa
      del PYTEST_HEADER_MODULES['Pandas']  # noqa
  except (NameError, KeyError):  # NameError is needed to support Astropy < 1.0
      pass
  
  # Uncomment the following lines to display the version number of the
  # package rather than the version number of Astropy in the top line when
  # running the tests.
  import os
  
  # This is to figure out the package version, rather than
  # using Astropy's
  try:
      from .version import version, astropy_helpers_version
  except ImportError:
      version = 'dev'
  
  try:
      packagename = os.path.basename(os.path.dirname(__file__))
      TESTED_VERSIONS[packagename] = version
      TESTED_VERSIONS['astropy_helpers'] = astropy_helpers_version
  except NameError:  # Needed to support Astropy <= 1.0.0
      pass
  
new_contents: # This file is used to configure the behavior of pytest when using the Astropy
  # test infrastructure.
  import os
  
  # As of Astropy 3.0, the pytest plugins provided by Astropy are
  # automatically made available when Astropy is installed. This means it's
  # not necessary to import them here, but we still need to import global
  # variables that are used for configuration.
  from astropy.tests.plugins.display import (pytest_report_header,  # noqa
                                             PYTEST_HEADER_MODULES,
                                             TESTED_VERSIONS)
  
  from astropy.tests.helper import enable_deprecations_as_exceptions
  
  from .version import version, astropy_helpers_version
  
  # Uncomment the following line 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']}
  enable_deprecations_as_exceptions()
  
  # Uncomment and customize the following lines to add/remove entries from
  # the list of packages for which version numbers are displayed when running
  # the tests. Making it pass for KeyError is essential in some cases when
  # the package uses other astropy affiliated packages.
  
  # Customize the following lines to add/remove entries from
  # the list of packages for which version numbers are displayed when running
  # the tests. Making it pass for KeyError is essential in some cases when
  # the package uses other astropy affiliated packages.
  try:
      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
      del PYTEST_HEADER_MODULES['h5py']  # noqa
      del PYTEST_HEADER_MODULES['Pandas']  # noqa
  except KeyError:
      pass
  
  # This is to figure out the package version, rather than
  # using Astropy's
  packagename = os.path.basename(os.path.dirname(__file__))
  TESTED_VERSIONS[packagename] = version
  TESTED_VERSIONS['astropy_helpers'] = astropy_helpers_version
  
subject: Update pytest config