python - 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? Additionally, if I wanted to add x_ as a suffix, how would the solution change?

Answer 1

The following is the nicest way to add suffix in my opinion.

df = df.add_suffix('_some_suffix')

As it is a function that is called on DataFrame and returns DataFrame - you can use it in chain of the calls.