I have dataframe in pandas with columns. I want list only the unique combinations .How can do it.
**Input**
data[['Month','Ratio']]
Month Ratio
3 0.7169653
3 0.7169653
3 0.7169653
6 0.6789213
6 0.6789213
7 0.2345671
7 0.2345671
7 0.2345671
7 0.2345671
12 0.5623451
12 0.5623451
12 0.5623451
1 0.9808901
**Expected Output**
Month Ratio
3 0.7169653
6 0.6789213
7 0.2345671
12 0.5623451
1 0.9808901
How to do this in python