How to apply string methods to multiple columns of a dataframe

Question

I have a dataframe with multiple string columns. I want to use a string method that is valid for a series on multiple columns of the dataframe. Something like this is what I w

Answer 1

You can mimic the behavior of rstrip using replace with regex=True, which can be applied to the entire DataFrame:

df.replace(r'f$', '', regex=True)

     A    B
0  123  789
1  456  901

Since rstrip takes a sequence of characters to strip, you can easily extend this:

df.replace(r'[abc]+$', '', regex=True)