old_contents: import distutils.core
  
  distutils.core.setup(name = 'scope',
      version = '1.0',
      description = 'zplab microscope package',
      packages = ['scope', 'scope.cli', 'scope.config', 'scope.device', 'scope.gui',
          'scope.messaging', 'scope.simple_rpc', 'scope.timecourse', 'scope.util',
          'scope.device.andor', 'scope.device.io_tool', 'scope.device.leica'])
  
new_contents: import distutils.core
  
  distutils.core.setup(name = 'scope',
      version = '1.0',
      description = 'zplab microscope package',
      packages = ['scope', 'scope.cli', 'scope.client_util', 'scope.config',
          'scope.device',  'scope.device.andor', 'scope.device.io_tool',
          'scope.device.leica', 'scope.gui', 'scope.messaging', 'scope.simple_rpc',
          'scope.timecourse', 'scope.util'])
  
subject: add client_util to setup.py