Simple question about python logic.

[seungchan.oh at gmail.com]

I have a file containing following data. But the dimension can be
different.

A B C D E F G
3 4 1 5 6 2 4
7 2 4 1 6 9 3
3 4 1 5 6 2 4
7 2 4 1 6 9 3
.
.
.
.

What is the best approach to make a column vector with the name such
as A B, etc?