code: def _make_repr_table_from_sframe(X):
      
  
      assert isinstance(X, _SFrame)
  
      column_names = X.column_names()
  
      out_data = [ [None]*len(column_names) for i in range(X.num_rows())]
  
      column_sizes = [len(s) for s in column_names]
  
      for i, c in enumerate(column_names):
          for j, e in enumerate(X[c]):
              out_data[j][i] = str(e)
              column_sizes[i] = max(column_sizes[i], len(e))
  
      # now, go through and pad everything.
      out_data = ([ [cn.ljust(k, ' ') for cn, k in zip(column_names, column_sizes)],
                    ["-"*k for k in column_sizes] ]
                  + [ [e.ljust(k, ' ') for e, k in zip(row, column_sizes)] for row in out_data] )
  
      return ['  '.join(row) for row in out_data]
docs: Serializes an SFrame to a list of strings, that, when printed, creates a well-formatted table.