old_contents: """
  By using execfile(this_file, dict(__file__=this_file)) you will
  activate this virtualenv environment.
  
  This can be used when you must use an existing Python interpreter, not
  the virtualenv bin/python
  """
  
  try:
      __file__
  except NameError:
      raise RuntimeError(
          "You must run this like execfile('path/to/activate_this.py', "
          "dict(__file__='path/to/activate_this.py'))"
      )
  
  import sys
  import os
  
  old_os_path = os.environ.get('PATH', '')
  os.environ['PATH'] = (
      os.path.dirname(os.path.abspath(__file__)) + os.pathsep + old_os_path
  )
  base = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
  
  if sys.platform == 'win32':
      site_packages = os.path.join(base, 'Lib', 'site-packages')
  else:
      site_packages = os.path.join(
          base, 'lib', 'python%s' % sys.version[:3], 'site-packages'
      )
  
  prev_sys_path = list(sys.path)
  
  import site
  
  site.addsitedir(site_packages)
  sys.real_prefix = sys.prefix
  sys.prefix = base
  # Move the added items to the front of the path:
  new_sys_path = []
  for item in list(sys.path):
      if item not in prev_sys_path:
          new_sys_path.append(item)
          sys.path.remove(item)
  sys.path[:0] = new_sys_path
  
new_contents: """
  By using execfile(this_file, dict(__file__=this_file)) you will
  activate this virtualenv environment.
  
  This can be used when you must use an existing Python interpreter, not
  the virtualenv bin/python
  """
  
  try:
      __file__
  except NameError:
      raise RuntimeError(
          "You must run this like execfile('path/to/activate_this.py', "
          "dict(__file__='path/to/activate_this.py'))"
      )
  
  import sys
  import os
  
  old_os_path = os.environ.get('PATH', '')
  os.environ['PATH'] = (
      os.path.dirname(os.path.abspath(__file__)) + os.pathsep + old_os_path
  )
  base = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
  
  if sys.platform == 'win32':
      site_packages = os.path.join(base, 'Lib', 'site-packages')
  else:
      site_packages = os.path.join(
          base, 'lib', 'python%s' % sys.version[:3], 'site-packages'
      )
  
  prev_sys_path = list(sys.path)
  
  import site  # flake8: noqa
  
  site.addsitedir(site_packages)
  sys.real_prefix = sys.prefix
  sys.prefix = base
  # Move the added items to the front of the path:
  new_sys_path = []
  for item in list(sys.path):
      if item not in prev_sys_path:
          new_sys_path.append(item)
          sys.path.remove(item)
  sys.path[:0] = new_sys_path
  
subject: Add a `flake8: noqa`.