old_contents: import sys
  import platform
  is_pypy = 'PyPy' in sys.version
  ver_tup = platform.python_version_tuple()[0:2]
  ver_tup = tuple(int(i) for i in ver_tup)
  
  def pytest_ignore_collect(path):
      path = str(path)
      # Serious technical debt
      if path.endswith('chemical.py') or path.endswith('mixture.py')  or path.endswith('stream.py') or path.endswith('README.rst'):
          return True
      if 'benchmarks' in path:
          return True
      if ver_tup < (3, 7) or ver_tup >= (3, 10) 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 'manual_runner' in path or 'make_test_stubs' in path or 'plot' in path or 'prerelease' in path:
          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_configure(config):
      import os
      #os._called_from_test = True
      
      if sys.version[0] == '3':
          import pytest
          if pytest.__version__.split('.')[0] >= '6':
              config.addinivalue_line("doctest_optionflags", "NUMBER")
          config.addinivalue_line("doctest_optionflags", "NORMALIZE_WHITESPACE")
  
new_contents: import sys
  import platform
  is_pypy = 'PyPy' in sys.version
  ver_tup = platform.python_version_tuple()[0:2]
  ver_tup = tuple(int(i) for i in ver_tup)
  
  def pytest_ignore_collect(path):
      path = str(path)
      # Serious technical debt
      if path.endswith('chemical.py') or path.endswith('mixture.py')  or path.endswith('stream.py') or path.endswith('README.rst'):
          return True
      if 'benchmarks' in path:
          return True
      if ver_tup < (3, 7) or ver_tup >= (3, 10) 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 'manual_runner' in path or 'make_test_stubs' in path or 'plot' in path or 'prerelease' in path or 'dump' in path:
          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_configure(config):
      import os
      #os._called_from_test = True
      
      if sys.version[0] == '3':
          import pytest
          if pytest.__version__.split('.')[0] >= '6':
              config.addinivalue_line("doctest_optionflags", "NUMBER")
          config.addinivalue_line("doctest_optionflags", "NORMALIZE_WHITESPACE")
  
subject: Fix pytest