Judging by your data it looks like the delimiter you’re using is a .
Try the following:
a = pandas.DataFrame.from_csv('st1.csv', sep=' ')
The other issue is that it’s assuming your first column is an index, which we can also disable:
a = pandas.DataFrame.from_csv('st1.csv', index_col=None)
UPDATE:
In newer pandas versions, do:
a = pandas.DataFrame.from_csv('st1.csv', index_col=False)