code: def reinitialize_command(self, command, reinit_subcommands=0):
          
          cmd = self.distribution.reinitialize_command(
              command, reinit_subcommands)
          if command in ('install', 'install_lib'):
              cmd.install_lib = None
          return cmd
docs: Supplement reinitialize_command to work around
          http://bugs.python.org/issue20819