pandas dataframe output header is not aligned to column

[finalpatch]

This is due to ob-ipython removing all leading whitespaces. for example, the output looks like

     Name  Age  Year  Cmp  Att   Yds  TD
     0  Peyton Manning   38  1998  326  575  3739  26
     1  Peyton Manning   38  1999  331  533  4135  26
     2  Peyton Manning   38  2000  357  571  4413  33
     3  Peyton Manning   38  2001  343  547  4131  26
     4  Peyton Manning   38  2002  392  591  4200  27

when it should be

                  Name  Age  Year  Cmp  Att   Yds  TD
     0  Peyton Manning   38  1998  326  575  3739  26
     1  Peyton Manning   38  1999  331  533  4135  26
     2  Peyton Manning   38  2000  357  571  4413  33
     3  Peyton Manning   38  2001  343  547  4131  26
     4  Peyton Manning   38  2002  392  591  4200  27

this can be fixed by replacing the (-map 's-trim) in ob-ipython--render with (-map 's-trim-right) so that leading whitespaces are kept.