How to capture Single Column from Web Html Table?

[perfringo]

I would most probably export them to a CSV file

Link appears to be dead, so generic example how to write specific columns to file:

>>> import pandas as pd
>>> d = {'ham': [1, 2, 3], 'spam': ['a', 'b', 'c'], 'bacon': ['1a', '2b', '3c']}
>>> df = pd.DataFrame(d)
>>> df
   ham spam bacon
0    1    a    1a
1    2    b    2b
2    3    c    3c
>>> df.to_csv('out.csv', columns=['ham', 'bacon'], index=False)

The content of out.csv is:

Output:
ham,bacon
1,1a
2,2b
3,3c