code: def _xls2col_widths(self, worksheet, tab):
          
  
          for col in xrange(worksheet.ncols):
              try:
                  xls_width = worksheet.colinfo_map[col].width
                  pys_width = self.xls_width2pys_width(xls_width)
                  self.code_array.col_widths[col, tab] = pys_width
  
              except KeyError:
                  pass
docs: Updates col_widths in code_array