new_contents: """
  Create a dist_info directory
  As defined in the wheel specification
  """
  
  import os
  import shutil
  
  from distutils.core import Command
  
  
  class dist_info(Command):
  
      description = 'create a .dist-info directory'
  
      user_options = [
          ('egg-base=', 'e', "directory containing .egg-info directories"
                             " (default: top of the source tree)"),
      ]
  
      def initialize_options(self):
          self.egg_base = None
  
      def finalize_options(self):
          pass
  
      def run(self):
          egg_info = self.get_finalized_command('egg_info')
          egg_info.run()
          dist_info_dir = egg_info.egg_info[:-len('.egg-info')] + '.dist-info'
  
          bdist_wheel = self.get_finalized_command('bdist_wheel')
          bdist_wheel.egg2dist(egg_info.egg_info, dist_info_dir)
  
          if self.egg_base:
              shutil.move(dist_info_dir, os.path.join(
                  self.egg_base, dist_info_dir))
  
subject: implement command