code: def getcolslice(self, columnname, blc, trc, inc=[],
                      startrow=0, nrow=-1, rowincr=1):
          
          return self._getcolslice(columnname, blc, trc, inc,
                                   startrow, nrow, rowincr)
docs: Get a slice from a table column holding arrays.
  
          The slice in each array is given by blc, trc, and inc
          (as in getcellslice).
          The column can be sliced by giving a start row (default 0), number of
          rows (default all), and row stride (default 1).
  
          It returns a numpy array where the first axis is formed by the column
          cells. The other axes are the array axes.