parameters: (self, postfix=None)
docstring: Make it so that the given code is textually
          appended to the input before evaluating a cell.
          To prepend code at the beginning, use cell_prefix.
  
          INPUT:
  
          - ``postfix`` -- None (to return postfix) or a string ("" to disable)
  
          EXAMPLES:
  
          Print memory usage after evaluating each cell:
  
              salvus.cell_postfix('print "%s MB used"%int(get_memory_usage())')
  
          Return to normal
  
              salvus.set_cell_postfix('')
docstring_summary: Make it so that the given code is textually
          appended to the input before evaluating a cell.
          To prepend code at the beginning, use cell_prefix.
docstring_tokens: Make it so that the given code is textually appended to the input before evaluating a cell . To prepend code at the beginning use cell_prefix .
function: def cell_postfix(self, postfix=None):
          """
          Make it so that the given code is textually
          appended to the input before evaluating a cell.
          To prepend code at the beginning, use cell_prefix.
  
          INPUT:
  
          - ``postfix`` -- None (to return postfix) or a string ("" to disable)
  
          EXAMPLES:
  
          Print memory usage after evaluating each cell:
  
              salvus.cell_postfix('print "%s MB used"%int(get_memory_usage())')
  
          Return to normal
  
              salvus.set_cell_postfix('')
  
          """
          if postfix is None:
              return Salvus._postfix
          else:
              Salvus._postfix = postfix
function_tokens: def cell_postfix ( self , postfix = None ) : if postfix is None : return Salvus . _postfix else : Salvus . _postfix = postfix