old_contents: #!/usr/bin/env python
  """
  Print various inforamation about a mesh.
  """
  from argparse import RawDescriptionHelpFormatter, ArgumentParser
  
  from sfepy.base.base import output
  from sfepy.discrete.fem import Mesh
  
  helps = {
      'filename' :
      'mesh file name',
  }
  
  def main():
      parser = ArgumentParser(description=__doc__.rstrip(),
                              formatter_class=RawDescriptionHelpFormatter)
      parser.add_argument('filename', help=helps['filename'])
      options = parser.parse_args()
  
      mesh = Mesh.from_file(options.filename)
  
      output(mesh.cmesh)
      output('element types:', mesh.descs)
      output('nodal BCs:', mesh.nodal_bcs)
  
      bbox = mesh.get_bounding_box()
      output('bounding box: %s'
             % ', '.join('%s: [%s, %s]' % (name, bbox[0, ii], bbox[1, ii])
                         for ii, name in enumerate('xyz'[:mesh.dim])))
  
      output('centre:', mesh.coors.mean(0))
  
  if __name__ == '__main__':
      main()
  
new_contents: #!/usr/bin/env python
  """
  Print various information about a mesh.
  """
  from argparse import RawDescriptionHelpFormatter, ArgumentParser
  
  from sfepy.base.base import output
  from sfepy.discrete.fem import Mesh
  
  helps = {
      'filename' :
      'mesh file name',
  }
  
  def main():
      parser = ArgumentParser(description=__doc__.rstrip(),
                              formatter_class=RawDescriptionHelpFormatter)
      parser.add_argument('filename', help=helps['filename'])
      options = parser.parse_args()
  
      mesh = Mesh.from_file(options.filename)
  
      output(mesh.cmesh)
      output('element types:', mesh.descs)
      output('nodal BCs:', mesh.nodal_bcs)
  
      bbox = mesh.get_bounding_box()
      output('bounding box: %s'
             % ', '.join('%s: [%s, %s]' % (name, bbox[0, ii], bbox[1, ii])
                         for ii, name in enumerate('xyz'[:mesh.dim])))
  
      output('centre:', mesh.coors.mean(0))
  
  if __name__ == '__main__':
      main()
  
subject: fix typo in docstring