How to add a suffix (or prefix) to each column name?

Question

I want to add _x suffix to each column name like so:

featuresA = myPandasDataFrame.columns.values + \'_x\'

How do I do this? A

Answer 1

I haven't seen this solution proposed above so adding this to the list:

df.columns += '_x'

And you can easily adapt for the prefix scenario.