old_contents: """
  This module contains deprecation messages and bits of code used elsewhere in the codebase
  that is planned to be removed in the next pytest release.
  
  Keeping it in a central location makes it easy to track what is deprecated and should
  be removed when the time comes.
  """
  from __future__ import absolute_import, division, print_function
  
  
  class RemovedInPytest4Warning(DeprecationWarning):
      """warning class for features removed in pytest 4.0"""
  
  
  MAIN_STR_ARGS = 'passing a string to pytest.main() is deprecated, ' \
      'pass a list of arguments instead.'
  
  YIELD_TESTS = 'yield tests are deprecated, and scheduled to be removed in pytest 4.0'
  
  FUNCARG_PREFIX = (
      '{name}: declaring fixtures using "pytest_funcarg__" prefix is deprecated '
      'and scheduled to be removed in pytest 4.0.  '
      'Please remove the prefix and use the @pytest.fixture decorator instead.')
  
  CFG_PYTEST_SECTION = '[pytest] section in {filename} files is deprecated, use [tool:pytest] instead.'
  
  GETFUNCARGVALUE = "use of getfuncargvalue is deprecated, use getfixturevalue"
  
  RESULT_LOG = (
      '--result-log is deprecated and scheduled for removal in pytest 4.0.\n'
      'See https://docs.pytest.org/en/latest/usage.html#creating-resultlog-format-files for more information.'
  )
  
  MARK_INFO_ATTRIBUTE = RemovedInPytest4Warning(
      "MarkInfo objects are deprecated as they contain the merged marks.\n"
      "Please use node.find_markers to iterate over markers correctly"
  )
  
  MARK_PARAMETERSET_UNPACKING = RemovedInPytest4Warning(
      "Applying marks directly to parameters is deprecated,"
      " please use pytest.param(..., marks=...) instead.\n"
      "For more details, see: https://docs.pytest.org/en/latest/parametrize.html"
  )
  
  RECORD_XML_PROPERTY = (
      'Fixture renamed from "record_xml_property" to "record_property" as user '
      'properties are now available to all reporters.\n'
      '"record_xml_property" is now deprecated.'
  )
  
  COLLECTOR_MAKEITEM = RemovedInPytest4Warning(
      "pycollector makeitem was removed "
      "as it is an accidentially leaked internal api"
  )
  
  METAFUNC_ADD_CALL = (
      "Metafunc.addcall is deprecated and scheduled to be removed in pytest 4.0.\n"
      "Please use Metafunc.parametrize instead."
  )
  
  PYTEST_PLUGINS_FROM_NON_TOP_LEVEL_CONFTEST = RemovedInPytest4Warning(
      "Defining pytest_plugins in a non-top-level conftest is deprecated, "
      "because it affects the entire directory tree in a non-explicit way.\n"
      "Please move it to the top level conftest file instead."
  )
  
new_contents: """
  This module contains deprecation messages and bits of code used elsewhere in the codebase
  that is planned to be removed in the next pytest release.
  
  Keeping it in a central location makes it easy to track what is deprecated and should
  be removed when the time comes.
  """
  from __future__ import absolute_import, division, print_function
  
  
  class RemovedInPytest4Warning(DeprecationWarning):
      """warning class for features removed in pytest 4.0"""
  
  
  MAIN_STR_ARGS = 'passing a string to pytest.main() is deprecated, ' \
      'pass a list of arguments instead.'
  
  YIELD_TESTS = 'yield tests are deprecated, and scheduled to be removed in pytest 4.0'
  
  FUNCARG_PREFIX = (
      '{name}: declaring fixtures using "pytest_funcarg__" prefix is deprecated '
      'and scheduled to be removed in pytest 4.0.  '
      'Please remove the prefix and use the @pytest.fixture decorator instead.')
  
  CFG_PYTEST_SECTION = '[pytest] section in {filename} files is deprecated, use [tool:pytest] instead.'
  
  GETFUNCARGVALUE = "use of getfuncargvalue is deprecated, use getfixturevalue"
  
  RESULT_LOG = (
      '--result-log is deprecated and scheduled for removal in pytest 4.0.\n'
      'See https://docs.pytest.org/en/latest/usage.html#creating-resultlog-format-files for more information.'
  )
  
  MARK_INFO_ATTRIBUTE = RemovedInPytest4Warning(
      "MarkInfo objects are deprecated as they contain the merged marks.\n"
      "Please use node.iter_markers to iterate over markers correctly"
  )
  
  MARK_PARAMETERSET_UNPACKING = RemovedInPytest4Warning(
      "Applying marks directly to parameters is deprecated,"
      " please use pytest.param(..., marks=...) instead.\n"
      "For more details, see: https://docs.pytest.org/en/latest/parametrize.html"
  )
  
  RECORD_XML_PROPERTY = (
      'Fixture renamed from "record_xml_property" to "record_property" as user '
      'properties are now available to all reporters.\n'
      '"record_xml_property" is now deprecated.'
  )
  
  COLLECTOR_MAKEITEM = RemovedInPytest4Warning(
      "pycollector makeitem was removed "
      "as it is an accidentially leaked internal api"
  )
  
  METAFUNC_ADD_CALL = (
      "Metafunc.addcall is deprecated and scheduled to be removed in pytest 4.0.\n"
      "Please use Metafunc.parametrize instead."
  )
  
  PYTEST_PLUGINS_FROM_NON_TOP_LEVEL_CONFTEST = RemovedInPytest4Warning(
      "Defining pytest_plugins in a non-top-level conftest is deprecated, "
      "because it affects the entire directory tree in a non-explicit way.\n"
      "Please move it to the top level conftest file instead."
  )
  
subject: fix method reference to iter_markers in warning