old_contents: import sys
  import platform
  is_pypy = 'PyPy' in sys.version
  
  def pytest_ignore_collect(path):
      path = str(path)
      if 'manual_runner' in path or 'make_test_stubs' in path or 'plot' in path or 'prerelease' in path:
          return True
      ver_tup = platform.python_version_tuple()[0:2]
      if ver_tup < ('3', '6') or ver_tup >= ('3', '9') or is_pypy:
          # numba does not yet run under pypy
          if 'numba' in path:
              return True
          if '.rst' in path: # skip .rst tests as different rendering from pint and no support for NUMBER flag
              return True
      if sys.version[0] == '2':
          if 'numba' in path or 'typing_utils' in path:
              return True
          #if 'rst' in path:
          #    if platform.python_version_tuple()[0:2] != ('3', '7'):
          #        return True
          if 'test' not in path:
              return True
      if 'ipynb' in path and 'bench' in path:
          return True
  
  #def pytest_addoption(parser, pluginmanager):
  #    if sys.version[0] == '323523':
  #        parser.addoption("--doctest-modules")
  #        parser.addini(name="doctest_optionflags", help="", default="NORMALIZE_WHITESPACE NUMBER")
  
  #def pytest_configure(config):
  #    print(config)
      #open('/home/caleb/testoutput', 'w').write(str(1))
      #if sys.version[0] == '2':
      #    args = []
      #    #print(args)
  
  def pytest_load_initial_conftests(args):
      a = 1
      b = 2
  
  
  def pytest_configure(config):
      if sys.version[0] == '3':
          import pytest
          if pytest.__version__.split('.')[0] >= '6':
              config.addinivalue_line("addopts", '--doctest-modules')
              config.option.doctestmodules = True
              config.addinivalue_line("doctest_optionflags", "NUMBER")
  #        config.addinivalue_line("addopts", config.inicfg['addopts'].replace('//', '') + ' --doctest-modules')
          #config.inicfg['addopts'] = config.inicfg['addopts'] + ' --doctest-modules'
          #
          config.addinivalue_line("doctest_optionflags", "NORMALIZE_WHITESPACE")
  
new_contents: import sys
  import platform
  is_pypy = 'PyPy' in sys.version
  
  def pytest_ignore_collect(path):
      path = str(path)
      if 'manual_runner' in path or 'make_test_stubs' in path or 'plot' in path or 'prerelease' in path:
          return True
      ver_tup = platform.python_version_tuple()[0:2]
      if ver_tup < ('3', '6') or ver_tup >= ('3', '9') or is_pypy:
          # numba does not yet run under pypy
          if 'numba' in path:
              return True
          if 'benchmarks' in path:
              return True
          if '.rst' in path: # skip .rst tests as different rendering from pint and no support for NUMBER flag
              return True
      if sys.version[0] == '2':
          if 'numba' in path or 'typing_utils' in path:
              return True
          #if 'rst' in path:
          #    if platform.python_version_tuple()[0:2] != ('3', '7'):
          #        return True
          if 'test' not in path:
              return True
      if 'ipynb' in path and 'bench' in path:
          return True
  
  #def pytest_addoption(parser, pluginmanager):
  #    if sys.version[0] == '323523':
  #        parser.addoption("--doctest-modules")
  #        parser.addini(name="doctest_optionflags", help="", default="NORMALIZE_WHITESPACE NUMBER")
  
  #def pytest_configure(config):
  #    print(config)
      #open('/home/caleb/testoutput', 'w').write(str(1))
      #if sys.version[0] == '2':
      #    args = []
      #    #print(args)
  
  def pytest_load_initial_conftests(args):
      a = 1
      b = 2
  
  
  def pytest_configure(config):
      if sys.version[0] == '3':
          import pytest
          if pytest.__version__.split('.')[0] >= '6':
              config.addinivalue_line("addopts", '--doctest-modules')
              config.option.doctestmodules = True
              config.addinivalue_line("doctest_optionflags", "NUMBER")
  #        config.addinivalue_line("addopts", config.inicfg['addopts'].replace('//', '') + ' --doctest-modules')
          #config.inicfg['addopts'] = config.inicfg['addopts'] + ' --doctest-modules'
          #
          config.addinivalue_line("doctest_optionflags", "NORMALIZE_WHITESPACE")
  
subject: Fix tests in Python 3.5